21751544

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{271}}^1$

素因数の和:483

約数の個数: 32

約数和(自身を含む): 41779200

約数和(自身を除く): 20027656

約数列:

[1, 2, 4, 8, 79, 127, 158, 254, 271, 316, 508, 542, 632, 1016, 1084, 2168, 10033, 20066, 21409, 34417, 40132, 42818, 68834, 80264, 85636, 137668, 171272, 275336, 2718943, 5437886, 10875772, 21751544]

約数ペア:

[(1, 21751544), (2, 10875772), (4, 5437886), (8, 2718943), (79, 275336), (127, 171272), (158, 137668), (254, 85636), (271, 80264), (316, 68834), (508, 42818), (542, 40132), (632, 34417), (1016, 21409), (1084, 20066), (2168, 10033)]