21981760

素因数分解:

$2^6\times 5^1\times {\mathrm{73}}^1\times {\mathrm{941}}^1$

素因数の和:1031

約数の個数: 56

約数和(自身を含む): 53117496

約数和(自身を除く): 31135736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 146, 160, 292, 320, 365, 584, 730, 941, 1168, 1460, 1882, 2336, 2920, 3764, 4672, 4705, 5840, 7528, 9410, 11680, 15056, 18820, 23360, 30112, 37640, 60224, 68693, 75280, 137386, 150560, 274772, 301120, 343465, 549544, 686930, 1099088, 1373860, 2198176, 2747720, 4396352, 5495440, 10990880, 21981760]

約数ペア:

[(1, 21981760), (2, 10990880), (4, 5495440), (5, 4396352), (8, 2747720), (10, 2198176), (16, 1373860), (20, 1099088), (32, 686930), (40, 549544), (64, 343465), (73, 301120), (80, 274772), (146, 150560), (160, 137386), (292, 75280), (320, 68693), (365, 60224), (584, 37640), (730, 30112), (941, 23360), (1168, 18820), (1460, 15056), (1882, 11680), (2336, 9410), (2920, 7528), (3764, 5840), (4672, 4705)]