21539432

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{677}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 41859720

約数和(自身を除く): 20320288

約数列:

[1, 2, 4, 8, 41, 82, 97, 164, 194, 328, 388, 677, 776, 1354, 2708, 3977, 5416, 7954, 15908, 27757, 31816, 55514, 65669, 111028, 131338, 222056, 262676, 525352, 2692429, 5384858, 10769716, 21539432]

約数ペア:

[(1, 21539432), (2, 10769716), (4, 5384858), (8, 2692429), (41, 525352), (82, 262676), (97, 222056), (164, 131338), (194, 111028), (328, 65669), (388, 55514), (677, 31816), (776, 27757), (1354, 15908), (2708, 7954), (3977, 5416)]