21706260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3319}}^1$

素因数の和:3440

約数の個数: 48

約数和(自身を含む): 61353600

約数和(自身を除く): 39647340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 109, 218, 327, 436, 545, 654, 1090, 1308, 1635, 2180, 3270, 3319, 6540, 6638, 9957, 13276, 16595, 19914, 33190, 39828, 49785, 66380, 99570, 199140, 361771, 723542, 1085313, 1447084, 1808855, 2170626, 3617710, 4341252, 5426565, 7235420, 10853130, 21706260]

約数ペア:

[(1, 21706260), (2, 10853130), (3, 7235420), (4, 5426565), (5, 4341252), (6, 3617710), (10, 2170626), (12, 1808855), (15, 1447084), (20, 1085313), (30, 723542), (60, 361771), (109, 199140), (218, 99570), (327, 66380), (436, 49785), (545, 39828), (654, 33190), (1090, 19914), (1308, 16595), (1635, 13276), (2180, 9957), (3270, 6638), (3319, 6540)]