20757156

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{8521}}^1$

素因数の和:8564

約数の個数: 48

約数和(自身を含む): 57267840

約数和(自身を除く): 36510684

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 29, 42, 58, 84, 87, 116, 174, 203, 348, 406, 609, 812, 1218, 2436, 8521, 17042, 25563, 34084, 51126, 59647, 102252, 119294, 178941, 238588, 247109, 357882, 494218, 715764, 741327, 988436, 1482654, 1729763, 2965308, 3459526, 5189289, 6919052, 10378578, 20757156]

約数ペア:

[(1, 20757156), (2, 10378578), (3, 6919052), (4, 5189289), (6, 3459526), (7, 2965308), (12, 1729763), (14, 1482654), (21, 988436), (28, 741327), (29, 715764), (42, 494218), (58, 357882), (84, 247109), (87, 238588), (116, 178941), (174, 119294), (203, 102252), (348, 59647), (406, 51126), (609, 34084), (812, 25563), (1218, 17042), (2436, 8521)]