21296912

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14627}}^1$

素因数の和:14655

約数の個数: 40

約数和(自身を含む): 50788416

約数和(自身を除く): 29491504

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 14627, 29254, 58508, 102389, 117016, 190151, 204778, 234032, 380302, 409556, 760604, 819112, 1331057, 1521208, 1638224, 2662114, 3042416, 5324228, 10648456, 21296912]

約数ペア:

[(1, 21296912), (2, 10648456), (4, 5324228), (7, 3042416), (8, 2662114), (13, 1638224), (14, 1521208), (16, 1331057), (26, 819112), (28, 760604), (52, 409556), (56, 380302), (91, 234032), (104, 204778), (112, 190151), (182, 117016), (208, 102389), (364, 58508), (728, 29254), (1456, 14627)]