18187028

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{3923}}^1$

素因数の和:4007

約数の個数: 24

約数和(自身を含む): 34060320

約数和(自身を除く): 15873292

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 244, 1159, 2318, 3923, 4636, 7846, 15692, 74537, 149074, 239303, 298148, 478606, 957212, 4546757, 9093514, 18187028]

約数ペア:

[(1, 18187028), (2, 9093514), (4, 4546757), (19, 957212), (38, 478606), (61, 298148), (76, 239303), (122, 149074), (244, 74537), (1159, 15692), (2318, 7846), (3923, 4636)]