21203380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3109}}^1$

素因数の和:3160

約数の個数: 48

約数和(自身を含む): 50158080

約数和(自身を除く): 28954700

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, 3109, 3410, 6218, 6820, 12436, 15545, 31090, 34199, 62180, 68398, 96379, 136796, 170995, 192758, 341990, 385516, 481895, 683980, 963790, 1060169, 1927580, 2120338, 4240676, 5300845, 10601690, 21203380]

約数ペア:

[(1, 21203380), (2, 10601690), (4, 5300845), (5, 4240676), (10, 2120338), (11, 1927580), (20, 1060169), (22, 963790), (31, 683980), (44, 481895), (55, 385516), (62, 341990), (110, 192758), (124, 170995), (155, 136796), (220, 96379), (310, 68398), (341, 62180), (620, 34199), (682, 31090), (1364, 15545), (1705, 12436), (3109, 6820), (3410, 6218)]