21682816

素因数分解:

$2^7\times {\mathrm{61}}^1\times {\mathrm{2777}}^1$

素因数の和:2852

約数の個数: 32

約数和(自身を含む): 43920180

約数和(自身を除く): 22237364

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 488, 976, 1952, 2777, 3904, 5554, 7808, 11108, 22216, 44432, 88864, 169397, 177728, 338794, 355456, 677588, 1355176, 2710352, 5420704, 10841408, 21682816]

約数ペア:

[(1, 21682816), (2, 10841408), (4, 5420704), (8, 2710352), (16, 1355176), (32, 677588), (61, 355456), (64, 338794), (122, 177728), (128, 169397), (244, 88864), (488, 44432), (976, 22216), (1952, 11108), (2777, 7808), (3904, 5554)]