21026432

素因数分解:

$2^7\times 7^1\times {\mathrm{31}}^1\times {\mathrm{757}}^1$

素因数の和:809

約数の個数: 64

約数和(自身を含む): 49482240

約数和(自身を除く): 28455808

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 434, 448, 496, 757, 868, 896, 992, 1514, 1736, 1984, 3028, 3472, 3968, 5299, 6056, 6944, 10598, 12112, 13888, 21196, 23467, 24224, 27776, 42392, 46934, 48448, 84784, 93868, 96896, 164269, 169568, 187736, 328538, 339136, 375472, 657076, 678272, 750944, 1314152, 1501888, 2628304, 3003776, 5256608, 10513216, 21026432]

約数ペア:

[(1, 21026432), (2, 10513216), (4, 5256608), (7, 3003776), (8, 2628304), (14, 1501888), (16, 1314152), (28, 750944), (31, 678272), (32, 657076), (56, 375472), (62, 339136), (64, 328538), (112, 187736), (124, 169568), (128, 164269), (217, 96896), (224, 93868), (248, 84784), (434, 48448), (448, 46934), (496, 42392), (757, 27776), (868, 24224), (896, 23467), (992, 21196), (1514, 13888), (1736, 12112), (1984, 10598), (3028, 6944), (3472, 6056), (3968, 5299)]