21343190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{569}}^1$

素因数の和:629

約数の個数: 48

約数和(自身を含む): 43666560

約数和(自身を除く): 22323370

約数列:

[1, 2, 5, 10, 11, 22, 31, 55, 62, 110, 121, 155, 242, 310, 341, 569, 605, 682, 1138, 1210, 1705, 2845, 3410, 3751, 5690, 6259, 7502, 12518, 17639, 18755, 31295, 35278, 37510, 62590, 68849, 88195, 137698, 176390, 194029, 344245, 388058, 688490, 970145, 1940290, 2134319, 4268638, 10671595, 21343190]

約数ペア:

[(1, 21343190), (2, 10671595), (5, 4268638), (10, 2134319), (11, 1940290), (22, 970145), (31, 688490), (55, 388058), (62, 344245), (110, 194029), (121, 176390), (155, 137698), (242, 88195), (310, 68849), (341, 62590), (569, 37510), (605, 35278), (682, 31295), (1138, 18755), (1210, 17639), (1705, 12518), (2845, 7502), (3410, 6259), (3751, 5690)]