21470019417

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{331}}^1$

素因数の和:560

約数の個数: 144

約数和(自身を含む): 39970717696

約数和(自身を除く): 18500698279

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 67, 77, 99, 121, 127, 201, 231, 331, 363, 381, 469, 603, 693, 737, 847, 889, 993, 1089, 1143, 1397, 1407, 2211, 2317, 2541, 2667, 2979, 3641, 4191, 4221, 5159, 6633, 6951, 7623, 8001, 8107, 8509, 9779, 10923, 12573, 15367, 15477, 20853, 22177, 24321, 25487, 25527, 29337, 32769, 40051, 42037, 46101, 46431, 56749, 59563, 66531, 72963, 76461, 76581, 88011, 93599, 107569, 120153, 126111, 138303, 155239, 170247, 178689, 199593, 229383, 243947, 280357, 280797, 294259, 322707, 360459, 378333, 462407, 465717, 510741, 536067, 655193, 731841, 841071, 842391, 882777, 968121, 1029589, 1387221, 1397151, 1707629, 1965579, 2195523, 2523213, 2648331, 2683417, 2816479, 3088767, 3236849, 4161663, 5086477, 5122887, 5896737, 7207123, 8050251, 8449437, 9266301, 9710547, 15259431, 15368661, 18783919, 19715353, 21621369, 24150753, 25348311, 29131641, 30981269, 35605339, 45778293, 56351757, 59146059, 64864107, 92943807, 106816017, 169055271, 177438177, 216868883, 278831421, 320448051, 340793959, 650606649, 1022381877, 1951819947, 2385557713, 3067145631, 7156673139, 21470019417]

約数ペア:

[(1, 21470019417), (3, 7156673139), (7, 3067145631), (9, 2385557713), (11, 1951819947), (21, 1022381877), (33, 650606649), (63, 340793959), (67, 320448051), (77, 278831421), (99, 216868883), (121, 177438177), (127, 169055271), (201, 106816017), (231, 92943807), (331, 64864107), (363, 59146059), (381, 56351757), (469, 45778293), (603, 35605339), (693, 30981269), (737, 29131641), (847, 25348311), (889, 24150753), (993, 21621369), (1089, 19715353), (1143, 18783919), (1397, 15368661), (1407, 15259431), (2211, 9710547), (2317, 9266301), (2541, 8449437), (2667, 8050251), (2979, 7207123), (3641, 5896737), (4191, 5122887), (4221, 5086477), (5159, 4161663), (6633, 3236849), (6951, 3088767), (7623, 2816479), (8001, 2683417), (8107, 2648331), (8509, 2523213), (9779, 2195523), (10923, 1965579), (12573, 1707629), (15367, 1397151), (15477, 1387221), (20853, 1029589), (22177, 968121), (24321, 882777), (25487, 842391), (25527, 841071), (29337, 731841), (32769, 655193), (40051, 536067), (42037, 510741), (46101, 465717), (46431, 462407), (56749, 378333), (59563, 360459), (66531, 322707), (72963, 294259), (76461, 280797), (76581, 280357), (88011, 243947), (93599, 229383), (107569, 199593), (120153, 178689), (126111, 170247), (138303, 155239)]