21554460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{119747}}^1$

素因数の和:119762

約数の個数: 36

約数和(自身を含む): 65382408

約数和(自身を除く): 43827948

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 119747, 239494, 359241, 478988, 598735, 718482, 1077723, 1197470, 1436964, 1796205, 2155446, 2394940, 3592410, 4310892, 5388615, 7184820, 10777230, 21554460]

約数ペア:

[(1, 21554460), (2, 10777230), (3, 7184820), (4, 5388615), (5, 4310892), (6, 3592410), (9, 2394940), (10, 2155446), (12, 1796205), (15, 1436964), (18, 1197470), (20, 1077723), (30, 718482), (36, 598735), (45, 478988), (60, 359241), (90, 239494), (180, 119747)]