21557382

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1609}}^1$

素因数の和:1661

約数の個数: 64

約数和(自身を含む): 55641600

約数和(自身を除く): 34084218

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 29, 33, 42, 58, 66, 77, 87, 154, 174, 203, 231, 319, 406, 462, 609, 638, 957, 1218, 1609, 1914, 2233, 3218, 4466, 4827, 6699, 9654, 11263, 13398, 17699, 22526, 33789, 35398, 46661, 53097, 67578, 93322, 106194, 123893, 139983, 247786, 279966, 326627, 371679, 513271, 653254, 743358, 979881, 1026542, 1539813, 1959762, 3079626, 3592897, 7185794, 10778691, 21557382]

約数ペア:

[(1, 21557382), (2, 10778691), (3, 7185794), (6, 3592897), (7, 3079626), (11, 1959762), (14, 1539813), (21, 1026542), (22, 979881), (29, 743358), (33, 653254), (42, 513271), (58, 371679), (66, 326627), (77, 279966), (87, 247786), (154, 139983), (174, 123893), (203, 106194), (231, 93322), (319, 67578), (406, 53097), (462, 46661), (609, 35398), (638, 33789), (957, 22526), (1218, 17699), (1609, 13398), (1914, 11263), (2233, 9654), (3218, 6699), (4466, 4827)]