21460628

素因数分解:

$2^2\times 7^2\times {\mathrm{223}}^1\times {\mathrm{491}}^1$

素因数の和:732

約数の個数: 36

約数和(自身を含む): 43972992

約数和(自身を除く): 22512364

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 223, 446, 491, 892, 982, 1561, 1964, 3122, 3437, 6244, 6874, 10927, 13748, 21854, 24059, 43708, 48118, 96236, 109493, 218986, 437972, 766451, 1532902, 3065804, 5365157, 10730314, 21460628]

約数ペア:

[(1, 21460628), (2, 10730314), (4, 5365157), (7, 3065804), (14, 1532902), (28, 766451), (49, 437972), (98, 218986), (196, 109493), (223, 96236), (446, 48118), (491, 43708), (892, 24059), (982, 21854), (1561, 13748), (1964, 10927), (3122, 6874), (3437, 6244)]