221560052

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{129719}}^1$

素因数の和:129791

約数の個数: 24

約数和(自身を含む): 450387840

約数和(自身を除く): 228827788

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 129719, 259438, 518876, 908033, 1816066, 3632132, 7912859, 15825718, 31651436, 55390013, 110780026, 221560052]

約数ペア:

[(1, 221560052), (2, 110780026), (4, 55390013), (7, 31651436), (14, 15825718), (28, 7912859), (61, 3632132), (122, 1816066), (244, 908033), (427, 518876), (854, 259438), (1708, 129719)]