21818034

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{853}}^1$

素因数の和:904

約数の個数: 72

約数和(自身を含む): 56953260

約数和(自身を除く): 35135226

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 29, 42, 49, 58, 63, 87, 98, 126, 147, 174, 203, 261, 294, 406, 441, 522, 609, 853, 882, 1218, 1421, 1706, 1827, 2559, 2842, 3654, 4263, 5118, 5971, 7677, 8526, 11942, 12789, 15354, 17913, 24737, 25578, 35826, 41797, 49474, 53739, 74211, 83594, 107478, 125391, 148422, 173159, 222633, 250782, 346318, 376173, 445266, 519477, 752346, 1038954, 1212113, 1558431, 2424226, 3116862, 3636339, 7272678, 10909017, 21818034]

約数ペア:

[(1, 21818034), (2, 10909017), (3, 7272678), (6, 3636339), (7, 3116862), (9, 2424226), (14, 1558431), (18, 1212113), (21, 1038954), (29, 752346), (42, 519477), (49, 445266), (58, 376173), (63, 346318), (87, 250782), (98, 222633), (126, 173159), (147, 148422), (174, 125391), (203, 107478), (261, 83594), (294, 74211), (406, 53739), (441, 49474), (522, 41797), (609, 35826), (853, 25578), (882, 24737), (1218, 17913), (1421, 15354), (1706, 12789), (1827, 11942), (2559, 8526), (2842, 7677), (3654, 5971), (4263, 5118)]