20606288

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{491}}^1$

素因数の和:603

約数の個数: 40

約数和(自身を含む): 41607456

約数和(自身を除く): 21001168

約数列:

[1, 2, 4, 8, 16, 43, 61, 86, 122, 172, 244, 344, 488, 491, 688, 976, 982, 1964, 2623, 3928, 5246, 7856, 10492, 20984, 21113, 29951, 41968, 42226, 59902, 84452, 119804, 168904, 239608, 337808, 479216, 1287893, 2575786, 5151572, 10303144, 20606288]

約数ペア:

[(1, 20606288), (2, 10303144), (4, 5151572), (8, 2575786), (16, 1287893), (43, 479216), (61, 337808), (86, 239608), (122, 168904), (172, 119804), (244, 84452), (344, 59902), (488, 42226), (491, 41968), (688, 29951), (976, 21113), (982, 20984), (1964, 10492), (2623, 7856), (3928, 5246)]