20690054

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1129}}^1$

素因数の和:1173

約数の個数: 48

約数和(自身を含む): 41737680

約数和(自身を除く): 21047626

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 49, 77, 98, 119, 154, 187, 238, 374, 539, 833, 1078, 1129, 1309, 1666, 2258, 2618, 7903, 9163, 12419, 15806, 18326, 19193, 24838, 38386, 55321, 86933, 110642, 134351, 173866, 211123, 268702, 422246, 608531, 940457, 1217062, 1477861, 1880914, 2955722, 10345027, 20690054]

約数ペア:

[(1, 20690054), (2, 10345027), (7, 2955722), (11, 1880914), (14, 1477861), (17, 1217062), (22, 940457), (34, 608531), (49, 422246), (77, 268702), (98, 211123), (119, 173866), (154, 134351), (187, 110642), (238, 86933), (374, 55321), (539, 38386), (833, 24838), (1078, 19193), (1129, 18326), (1309, 15806), (1666, 12419), (2258, 9163), (2618, 7903)]