21351064

素因数分解:

$2^3\times 7^3\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:309

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 27032936

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 49, 56, 62, 98, 124, 196, 217, 248, 251, 343, 392, 434, 502, 686, 868, 1004, 1372, 1519, 1736, 1757, 2008, 2744, 3038, 3514, 6076, 7028, 7781, 10633, 12152, 12299, 14056, 15562, 21266, 24598, 31124, 42532, 49196, 54467, 62248, 85064, 86093, 98392, 108934, 172186, 217868, 344372, 381269, 435736, 688744, 762538, 1525076, 2668883, 3050152, 5337766, 10675532, 21351064]

約数ペア:

[(1, 21351064), (2, 10675532), (4, 5337766), (7, 3050152), (8, 2668883), (14, 1525076), (28, 762538), (31, 688744), (49, 435736), (56, 381269), (62, 344372), (98, 217868), (124, 172186), (196, 108934), (217, 98392), (248, 86093), (251, 85064), (343, 62248), (392, 54467), (434, 49196), (502, 42532), (686, 31124), (868, 24598), (1004, 21266), (1372, 15562), (1519, 14056), (1736, 12299), (1757, 12152), (2008, 10633), (2744, 7781), (3038, 7028), (3514, 6076)]