20996756

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 41827968

約数和(自身を除く): 20831212

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 103, 113, 164, 206, 226, 412, 451, 452, 902, 1133, 1243, 1804, 2266, 2486, 4223, 4532, 4633, 4972, 8446, 9266, 11639, 16892, 18532, 23278, 46453, 46556, 50963, 92906, 101926, 128029, 185812, 203852, 256058, 477199, 512116, 954398, 1908796, 5249189, 10498378, 20996756]

約数ペア:

[(1, 20996756), (2, 10498378), (4, 5249189), (11, 1908796), (22, 954398), (41, 512116), (44, 477199), (82, 256058), (103, 203852), (113, 185812), (164, 128029), (206, 101926), (226, 92906), (412, 50963), (451, 46556), (452, 46453), (902, 23278), (1133, 18532), (1243, 16892), (1804, 11639), (2266, 9266), (2486, 8446), (4223, 4972), (4532, 4633)]