20129886

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{787}}^1$

素因数の和:838

約数の個数: 72

約数和(自身を含む): 52551720

約数和(自身を除く): 32421834

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, 787, 882, 1218, 1421, 1574, 1827, 2361, 2842, 3654, 4263, 4722, 5509, 7083, 8526, 11018, 12789, 14166, 16527, 22823, 25578, 33054, 38563, 45646, 49581, 68469, 77126, 99162, 115689, 136938, 159761, 205407, 231378, 319522, 347067, 410814, 479283, 694134, 958566, 1118327, 1437849, 2236654, 2875698, 3354981, 6709962, 10064943, 20129886]

約数ペア:

[(1, 20129886), (2, 10064943), (3, 6709962), (6, 3354981), (7, 2875698), (9, 2236654), (14, 1437849), (18, 1118327), (21, 958566), (29, 694134), (42, 479283), (49, 410814), (58, 347067), (63, 319522), (87, 231378), (98, 205407), (126, 159761), (147, 136938), (174, 115689), (203, 99162), (261, 77126), (294, 68469), (406, 49581), (441, 45646), (522, 38563), (609, 33054), (787, 25578), (882, 22823), (1218, 16527), (1421, 14166), (1574, 12789), (1827, 11018), (2361, 8526), (2842, 7083), (3654, 5509), (4263, 4722)]