21366080

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2903}}^1$

素因数の和:2943

約数の個数: 56

約数和(自身を含む): 53108352

約数和(自身を除く): 31742272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 160, 184, 230, 320, 368, 460, 736, 920, 1472, 1840, 2903, 3680, 5806, 7360, 11612, 14515, 23224, 29030, 46448, 58060, 66769, 92896, 116120, 133538, 185792, 232240, 267076, 333845, 464480, 534152, 667690, 928960, 1068304, 1335380, 2136608, 2670760, 4273216, 5341520, 10683040, 21366080]

約数ペア:

[(1, 21366080), (2, 10683040), (4, 5341520), (5, 4273216), (8, 2670760), (10, 2136608), (16, 1335380), (20, 1068304), (23, 928960), (32, 667690), (40, 534152), (46, 464480), (64, 333845), (80, 267076), (92, 232240), (115, 185792), (160, 133538), (184, 116120), (230, 92896), (320, 66769), (368, 58060), (460, 46448), (736, 29030), (920, 23224), (1472, 14515), (1840, 11612), (2903, 7360), (3680, 5806)]