21239958

素因数分解:

$2^1\times 3^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{691}}^1$

素因数の和:852

約数の個数: 32

約数和(自身を含む): 43845120

約数和(自身を除く): 22605162

約数列:

[1, 2, 3, 6, 47, 94, 109, 141, 218, 282, 327, 654, 691, 1382, 2073, 4146, 5123, 10246, 15369, 30738, 32477, 64954, 75319, 97431, 150638, 194862, 225957, 451914, 3539993, 7079986, 10619979, 21239958]

約数ペア:

[(1, 21239958), (2, 10619979), (3, 7079986), (6, 3539993), (47, 451914), (94, 225957), (109, 194862), (141, 150638), (218, 97431), (282, 75319), (327, 64954), (654, 32477), (691, 30738), (1382, 15369), (2073, 10246), (4146, 5123)]