20724836

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{269}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 42456960

約数和(自身を除く): 21732124

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 103, 187, 206, 269, 374, 412, 538, 748, 1076, 1133, 1751, 2266, 2959, 3502, 4532, 4573, 5918, 7004, 9146, 11836, 18292, 19261, 27707, 38522, 50303, 55414, 77044, 100606, 110828, 201212, 304777, 471019, 609554, 942038, 1219108, 1884076, 5181209, 10362418, 20724836]

約数ペア:

[(1, 20724836), (2, 10362418), (4, 5181209), (11, 1884076), (17, 1219108), (22, 942038), (34, 609554), (44, 471019), (68, 304777), (103, 201212), (187, 110828), (206, 100606), (269, 77044), (374, 55414), (412, 50303), (538, 38522), (748, 27707), (1076, 19261), (1133, 18292), (1751, 11836), (2266, 9146), (2959, 7004), (3502, 5918), (4532, 4573)]