21935728

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1223}}^1$

素因数の和:1309

約数の個数: 40

約数和(自身を含む): 45532800

約数和(自身を除く): 23597072

約数列:

[1, 2, 4, 8, 16, 19, 38, 59, 76, 118, 152, 236, 304, 472, 944, 1121, 1223, 2242, 2446, 4484, 4892, 8968, 9784, 17936, 19568, 23237, 46474, 72157, 92948, 144314, 185896, 288628, 371792, 577256, 1154512, 1370983, 2741966, 5483932, 10967864, 21935728]

約数ペア:

[(1, 21935728), (2, 10967864), (4, 5483932), (8, 2741966), (16, 1370983), (19, 1154512), (38, 577256), (59, 371792), (76, 288628), (118, 185896), (152, 144314), (236, 92948), (304, 72157), (472, 46474), (944, 23237), (1121, 19568), (1223, 17936), (2242, 9784), (2446, 8968), (4484, 4892)]