21351696

素因数分解:

$2^4\times 3^1\times {\mathrm{163}}^1\times {\mathrm{2729}}^1$

素因数の和:2903

約数の個数: 40

約数和(自身を含む): 55517280

約数和(自身を除く): 34165584

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 163, 326, 489, 652, 978, 1304, 1956, 2608, 2729, 3912, 5458, 7824, 8187, 10916, 16374, 21832, 32748, 43664, 65496, 130992, 444827, 889654, 1334481, 1779308, 2668962, 3558616, 5337924, 7117232, 10675848, 21351696]

約数ペア:

[(1, 21351696), (2, 10675848), (3, 7117232), (4, 5337924), (6, 3558616), (8, 2668962), (12, 1779308), (16, 1334481), (24, 889654), (48, 444827), (163, 130992), (326, 65496), (489, 43664), (652, 32748), (978, 21832), (1304, 16374), (1956, 10916), (2608, 8187), (2729, 7824), (3912, 5458)]