20641808

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{6899}}^1$

素因数の和:6935

約数の個数: 40

約数和(自身を含む): 46202400

約数和(自身を除く): 25560592

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 136, 176, 187, 272, 374, 748, 1496, 2992, 6899, 13798, 27596, 55192, 75889, 110384, 117283, 151778, 234566, 303556, 469132, 607112, 938264, 1214224, 1290113, 1876528, 2580226, 5160452, 10320904, 20641808]

約数ペア:

[(1, 20641808), (2, 10320904), (4, 5160452), (8, 2580226), (11, 1876528), (16, 1290113), (17, 1214224), (22, 938264), (34, 607112), (44, 469132), (68, 303556), (88, 234566), (136, 151778), (176, 117283), (187, 110384), (272, 75889), (374, 55192), (748, 27596), (1496, 13798), (2992, 6899)]