18191056

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4603}}^1$

素因数の和:4643

約数の個数: 40

約数和(自身を含む): 39962720

約数和(自身を除く): 21771664

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 4603, 9206, 18412, 36824, 59839, 73648, 87457, 119678, 174914, 239356, 349828, 478712, 699656, 957424, 1136941, 1399312, 2273882, 4547764, 9095528, 18191056]

約数ペア:

[(1, 18191056), (2, 9095528), (4, 4547764), (8, 2273882), (13, 1399312), (16, 1136941), (19, 957424), (26, 699656), (38, 478712), (52, 349828), (76, 239356), (104, 174914), (152, 119678), (208, 87457), (247, 73648), (304, 59839), (494, 36824), (988, 18412), (1976, 9206), (3952, 4603)]