21208416

素因数分解:

$2^5\times 3^1\times {\mathrm{173}}^1\times {\mathrm{1277}}^1$

素因数の和:1463

約数の個数: 48

約数和(自身を含む): 56037744

約数和(自身を除く): 34829328

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 173, 346, 519, 692, 1038, 1277, 1384, 2076, 2554, 2768, 3831, 4152, 5108, 5536, 7662, 8304, 10216, 15324, 16608, 20432, 30648, 40864, 61296, 122592, 220921, 441842, 662763, 883684, 1325526, 1767368, 2651052, 3534736, 5302104, 7069472, 10604208, 21208416]

約数ペア:

[(1, 21208416), (2, 10604208), (3, 7069472), (4, 5302104), (6, 3534736), (8, 2651052), (12, 1767368), (16, 1325526), (24, 883684), (32, 662763), (48, 441842), (96, 220921), (173, 122592), (346, 61296), (519, 40864), (692, 30648), (1038, 20432), (1277, 16608), (1384, 15324), (2076, 10216), (2554, 8304), (2768, 7662), (3831, 5536), (4152, 5108)]