21432796

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{9941}}^1$

素因数の和:9970

約数の個数: 36

約数和(自身を含む): 47602296

約数和(自身を除く): 26169500

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 9941, 19882, 39764, 69587, 109351, 139174, 218702, 278348, 437404, 487109, 765457, 974218, 1530914, 1948436, 3061828, 5358199, 10716398, 21432796]

約数ペア:

[(1, 21432796), (2, 10716398), (4, 5358199), (7, 3061828), (11, 1948436), (14, 1530914), (22, 974218), (28, 765457), (44, 487109), (49, 437404), (77, 278348), (98, 218702), (154, 139174), (196, 109351), (308, 69587), (539, 39764), (1078, 19882), (2156, 9941)]