21906464

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{283}}^1$

素因数の和:393

約数の個数: 48

約数和(自身を含む): 45087840

約数和(自身を除く): 23181376

約数列:

[1, 2, 4, 8, 16, 32, 41, 59, 82, 118, 164, 236, 283, 328, 472, 566, 656, 944, 1132, 1312, 1888, 2264, 2419, 4528, 4838, 9056, 9676, 11603, 16697, 19352, 23206, 33394, 38704, 46412, 66788, 77408, 92824, 133576, 185648, 267152, 371296, 534304, 684577, 1369154, 2738308, 5476616, 10953232, 21906464]

約数ペア:

[(1, 21906464), (2, 10953232), (4, 5476616), (8, 2738308), (16, 1369154), (32, 684577), (41, 534304), (59, 371296), (82, 267152), (118, 185648), (164, 133576), (236, 92824), (283, 77408), (328, 66788), (472, 46412), (566, 38704), (656, 33394), (944, 23206), (1132, 19352), (1312, 16697), (1888, 11603), (2264, 9676), (2419, 9056), (4528, 4838)]