21679830

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1733}}^1$

素因数の和:1885

約数の個数: 48

約数和(自身を含む): 56805840

約数和(自身を除く): 35126010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 139, 278, 417, 695, 834, 1251, 1390, 1733, 2085, 2502, 3466, 4170, 5199, 6255, 8665, 10398, 12510, 15597, 17330, 25995, 31194, 51990, 77985, 155970, 240887, 481774, 722661, 1204435, 1445322, 2167983, 2408870, 3613305, 4335966, 7226610, 10839915, 21679830]

約数ペア:

[(1, 21679830), (2, 10839915), (3, 7226610), (5, 4335966), (6, 3613305), (9, 2408870), (10, 2167983), (15, 1445322), (18, 1204435), (30, 722661), (45, 481774), (90, 240887), (139, 155970), (278, 77985), (417, 51990), (695, 31194), (834, 25995), (1251, 17330), (1390, 15597), (1733, 12510), (2085, 10398), (2502, 8665), (3466, 6255), (4170, 5199)]