18810874

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{787}}^1$

素因数の和:862

約数の個数: 32

約数和(自身を含む): 32339520

約数和(自身を除く): 13528646

約数列:

[1, 2, 17, 19, 34, 37, 38, 74, 323, 629, 646, 703, 787, 1258, 1406, 1574, 11951, 13379, 14953, 23902, 26758, 29119, 29906, 58238, 254201, 495023, 508402, 553261, 990046, 1106522, 9405437, 18810874]

約数ペア:

[(1, 18810874), (2, 9405437), (17, 1106522), (19, 990046), (34, 553261), (37, 508402), (38, 495023), (74, 254201), (323, 58238), (629, 29906), (646, 29119), (703, 26758), (787, 23902), (1258, 14953), (1406, 13379), (1574, 11951)]