21791056

素因数分解:

$2^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{3671}}^1$

素因数の和:3739

約数の個数: 40

約数和(自身を含む): 49175424

約数和(自身を除く): 27384368

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 53, 56, 106, 112, 212, 371, 424, 742, 848, 1484, 2968, 3671, 5936, 7342, 14684, 25697, 29368, 51394, 58736, 102788, 194563, 205576, 389126, 411152, 778252, 1361941, 1556504, 2723882, 3113008, 5447764, 10895528, 21791056]

約数ペア:

[(1, 21791056), (2, 10895528), (4, 5447764), (7, 3113008), (8, 2723882), (14, 1556504), (16, 1361941), (28, 778252), (53, 411152), (56, 389126), (106, 205576), (112, 194563), (212, 102788), (371, 58736), (424, 51394), (742, 29368), (848, 25697), (1484, 14684), (2968, 7342), (3671, 5936)]