21738088

素因数分解:

$2^3\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 41718600

約数和(自身を除く): 19980512

約数列:

[1, 2, 4, 8, 97, 109, 194, 218, 257, 388, 436, 514, 776, 872, 1028, 2056, 10573, 21146, 24929, 28013, 42292, 49858, 56026, 84584, 99716, 112052, 199432, 224104, 2717261, 5434522, 10869044, 21738088]

約数ペア:

[(1, 21738088), (2, 10869044), (4, 5434522), (8, 2717261), (97, 224104), (109, 199432), (194, 112052), (218, 99716), (257, 84584), (388, 56026), (436, 49858), (514, 42292), (776, 28013), (872, 24929), (1028, 21146), (2056, 10573)]