21675280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{24631}}^1$

素因数の和:24655

約数の個数: 40

約数和(自身を含む): 54978624

約数和(自身を除く): 33303344

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 24631, 49262, 98524, 123155, 197048, 246310, 270941, 394096, 492620, 541882, 985240, 1083764, 1354705, 1970480, 2167528, 2709410, 4335056, 5418820, 10837640, 21675280]

約数ペア:

[(1, 21675280), (2, 10837640), (4, 5418820), (5, 4335056), (8, 2709410), (10, 2167528), (11, 1970480), (16, 1354705), (20, 1083764), (22, 985240), (40, 541882), (44, 492620), (55, 394096), (80, 270941), (88, 246310), (110, 197048), (176, 123155), (220, 98524), (440, 49262), (880, 24631)]