20789808

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{33317}}^1$

素因数の和:33341

約数の個数: 40

約数和(自身を含む): 57840048

約数和(自身を除く): 37050240

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 33317, 66634, 99951, 133268, 199902, 266536, 399804, 433121, 533072, 799608, 866242, 1299363, 1599216, 1732484, 2598726, 3464968, 5197452, 6929936, 10394904, 20789808]

約数ペア:

[(1, 20789808), (2, 10394904), (3, 6929936), (4, 5197452), (6, 3464968), (8, 2598726), (12, 1732484), (13, 1599216), (16, 1299363), (24, 866242), (26, 799608), (39, 533072), (48, 433121), (52, 399804), (78, 266536), (104, 199902), (156, 133268), (208, 99951), (312, 66634), (624, 33317)]