20913944

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{1493}}^1$

素因数の和:1619

約数の個数: 32

約数和(自身を含む): 41951520

約数和(自身を除く): 21037576

約数列:

[1, 2, 4, 8, 17, 34, 68, 103, 136, 206, 412, 824, 1493, 1751, 2986, 3502, 5972, 7004, 11944, 14008, 25381, 50762, 101524, 153779, 203048, 307558, 615116, 1230232, 2614243, 5228486, 10456972, 20913944]

約数ペア:

[(1, 20913944), (2, 10456972), (4, 5228486), (8, 2614243), (17, 1230232), (34, 615116), (68, 307558), (103, 203048), (136, 153779), (206, 101524), (412, 50762), (824, 25381), (1493, 14008), (1751, 11944), (2986, 7004), (3502, 5972)]