15911493

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:341

約数の個数: 32

約数和(自身を含む): 24393600

約数和(自身を除く): 8482107

約数列:

[1, 3, 13, 19, 39, 57, 109, 197, 247, 327, 591, 741, 1417, 2071, 2561, 3743, 4251, 6213, 7683, 11229, 21473, 26923, 48659, 64419, 80769, 145977, 279149, 407987, 837447, 1223961, 5303831, 15911493]

約数ペア:

[(1, 15911493), (3, 5303831), (13, 1223961), (19, 837447), (39, 407987), (57, 279149), (109, 145977), (197, 80769), (247, 64419), (327, 48659), (591, 26923), (741, 21473), (1417, 11229), (2071, 7683), (2561, 6213), (3743, 4251)]