21111816

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{379}}^1$

素因数の和:610

約数の個数: 64

約数和(自身を含む): 58003200

約数和(自身を除く): 36891384

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 132, 211, 264, 379, 422, 633, 758, 844, 1137, 1266, 1516, 1688, 2274, 2321, 2532, 3032, 4169, 4548, 4642, 5064, 6963, 8338, 9096, 9284, 12507, 13926, 16676, 18568, 25014, 27852, 33352, 50028, 55704, 79969, 100056, 159938, 239907, 319876, 479814, 639752, 879659, 959628, 1759318, 1919256, 2638977, 3518636, 5277954, 7037272, 10555908, 21111816]

約数ペア:

[(1, 21111816), (2, 10555908), (3, 7037272), (4, 5277954), (6, 3518636), (8, 2638977), (11, 1919256), (12, 1759318), (22, 959628), (24, 879659), (33, 639752), (44, 479814), (66, 319876), (88, 239907), (132, 159938), (211, 100056), (264, 79969), (379, 55704), (422, 50028), (633, 33352), (758, 27852), (844, 25014), (1137, 18568), (1266, 16676), (1516, 13926), (1688, 12507), (2274, 9284), (2321, 9096), (2532, 8338), (3032, 6963), (4169, 5064), (4548, 4642)]