21297408

素因数分解:

$2^8\times 3^1\times {\mathrm{11}}^1\times {\mathrm{2521}}^1$

素因数の和:2551

約数の個数: 72

約数和(自身を含む): 61859616

約数和(自身を除く): 40562208

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 64, 66, 88, 96, 128, 132, 176, 192, 256, 264, 352, 384, 528, 704, 768, 1056, 1408, 2112, 2521, 2816, 4224, 5042, 7563, 8448, 10084, 15126, 20168, 27731, 30252, 40336, 55462, 60504, 80672, 83193, 110924, 121008, 161344, 166386, 221848, 242016, 322688, 332772, 443696, 484032, 645376, 665544, 887392, 968064, 1331088, 1774784, 1936128, 2662176, 3549568, 5324352, 7099136, 10648704, 21297408]

約数ペア:

[(1, 21297408), (2, 10648704), (3, 7099136), (4, 5324352), (6, 3549568), (8, 2662176), (11, 1936128), (12, 1774784), (16, 1331088), (22, 968064), (24, 887392), (32, 665544), (33, 645376), (44, 484032), (48, 443696), (64, 332772), (66, 322688), (88, 242016), (96, 221848), (128, 166386), (132, 161344), (176, 121008), (192, 110924), (256, 83193), (264, 80672), (352, 60504), (384, 55462), (528, 40336), (704, 30252), (768, 27731), (1056, 20168), (1408, 15126), (2112, 10084), (2521, 8448), (2816, 7563), (4224, 5042)]