21762620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3191}}^1$

素因数の和:3242

約数の個数: 48

約数和(自身を含む): 51480576

約数和(自身を除く): 29717956

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3191, 3410, 6382, 6820, 12764, 15955, 31910, 35101, 63820, 70202, 98921, 140404, 175505, 197842, 351010, 395684, 494605, 702020, 989210, 1088131, 1978420, 2176262, 4352524, 5440655, 10881310, 21762620]

約数ペア:

[(1, 21762620), (2, 10881310), (4, 5440655), (5, 4352524), (10, 2176262), (11, 1978420), (20, 1088131), (22, 989210), (31, 702020), (44, 494605), (55, 395684), (62, 351010), (110, 197842), (124, 175505), (155, 140404), (220, 98921), (310, 70202), (341, 63820), (620, 35101), (682, 31910), (1364, 15955), (1705, 12764), (3191, 6820), (3410, 6382)]