18418515

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{271}}^1$

素因数の和:499

約数の個数: 32

約数和(自身を含む): 31021056

約数和(自身を除く): 12602541

約数列:

[1, 3, 5, 15, 23, 69, 115, 197, 271, 345, 591, 813, 985, 1355, 2955, 4065, 4531, 6233, 13593, 18699, 22655, 31165, 53387, 67965, 93495, 160161, 266935, 800805, 1227901, 3683703, 6139505, 18418515]

約数ペア:

[(1, 18418515), (3, 6139505), (5, 3683703), (15, 1227901), (23, 800805), (69, 266935), (115, 160161), (197, 93495), (271, 67965), (345, 53387), (591, 31165), (813, 22655), (985, 18699), (1355, 13593), (2955, 6233), (4065, 4531)]