20971904

素因数分解:

$2^7\times {\mathrm{59}}^1\times {\mathrm{2777}}^1$

素因数の和:2850

約数の個数: 32

約数和(自身を含む): 42503400

約数和(自身を除く): 21531496

約数列:

[1, 2, 4, 8, 16, 32, 59, 64, 118, 128, 236, 472, 944, 1888, 2777, 3776, 5554, 7552, 11108, 22216, 44432, 88864, 163843, 177728, 327686, 355456, 655372, 1310744, 2621488, 5242976, 10485952, 20971904]

約数ペア:

[(1, 20971904), (2, 10485952), (4, 5242976), (8, 2621488), (16, 1310744), (32, 655372), (59, 355456), (64, 327686), (118, 177728), (128, 163843), (236, 88864), (472, 44432), (944, 22216), (1888, 11108), (2777, 7552), (3776, 5554)]