21290816

素因数分解:

$2^6\times {\mathrm{79}}^1\times {\mathrm{4211}}^1$

素因数の和:4302

約数の個数: 28

約数和(自身を含む): 42793920

約数和(自身を除く): 21503104

約数列:

[1, 2, 4, 8, 16, 32, 64, 79, 158, 316, 632, 1264, 2528, 4211, 5056, 8422, 16844, 33688, 67376, 134752, 269504, 332669, 665338, 1330676, 2661352, 5322704, 10645408, 21290816]

約数ペア:

[(1, 21290816), (2, 10645408), (4, 5322704), (8, 2661352), (16, 1330676), (32, 665338), (64, 332669), (79, 269504), (158, 134752), (316, 67376), (632, 33688), (1264, 16844), (2528, 8422), (4211, 5056)]