21053808

素因数分解:

$2^4\times 3^2\times {\mathrm{293}}^1\times {\mathrm{499}}^1$

素因数の和:806

約数の個数: 60

約数和(自身を含む): 59241000

約数和(自身を除く): 38187192

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 293, 499, 586, 879, 998, 1172, 1497, 1758, 1996, 2344, 2637, 2994, 3516, 3992, 4491, 4688, 5274, 5988, 7032, 7984, 8982, 10548, 11976, 14064, 17964, 21096, 23952, 35928, 42192, 71856, 146207, 292414, 438621, 584828, 877242, 1169656, 1315863, 1754484, 2339312, 2631726, 3508968, 5263452, 7017936, 10526904, 21053808]

約数ペア:

[(1, 21053808), (2, 10526904), (3, 7017936), (4, 5263452), (6, 3508968), (8, 2631726), (9, 2339312), (12, 1754484), (16, 1315863), (18, 1169656), (24, 877242), (36, 584828), (48, 438621), (72, 292414), (144, 146207), (293, 71856), (499, 42192), (586, 35928), (879, 23952), (998, 21096), (1172, 17964), (1497, 14064), (1758, 11976), (1996, 10548), (2344, 8982), (2637, 7984), (2994, 7032), (3516, 5988), (3992, 5274), (4491, 4688)]