21125368

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{3583}}^1$

素因数の和:3667

約数の個数: 32

約数和(自身を含む): 43868160

約数和(自身を除く): 22742792

約数列:

[1, 2, 4, 8, 11, 22, 44, 67, 88, 134, 268, 536, 737, 1474, 2948, 3583, 5896, 7166, 14332, 28664, 39413, 78826, 157652, 240061, 315304, 480122, 960244, 1920488, 2640671, 5281342, 10562684, 21125368]

約数ペア:

[(1, 21125368), (2, 10562684), (4, 5281342), (8, 2640671), (11, 1920488), (22, 960244), (44, 480122), (67, 315304), (88, 240061), (134, 157652), (268, 78826), (536, 39413), (737, 28664), (1474, 14332), (2948, 7166), (3583, 5896)]