18138728

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{3253}}^1$

素因数の和:3317

約数の個数: 32

約数和(自身を含む): 36900360

約数和(自身を除く): 18761632

約数列:

[1, 2, 4, 8, 17, 34, 41, 68, 82, 136, 164, 328, 697, 1394, 2788, 3253, 5576, 6506, 13012, 26024, 55301, 110602, 133373, 221204, 266746, 442408, 533492, 1066984, 2267341, 4534682, 9069364, 18138728]

約数ペア:

[(1, 18138728), (2, 9069364), (4, 4534682), (8, 2267341), (17, 1066984), (34, 533492), (41, 442408), (68, 266746), (82, 221204), (136, 133373), (164, 110602), (328, 55301), (697, 26024), (1394, 13012), (2788, 6506), (3253, 5576)]