21222796

素因数分解:

$2^2\times 7^1\times {\mathrm{383}}^1\times {\mathrm{1979}}^1$

素因数の和:2373

約数の個数: 24

約数和(自身を含む): 42577920

約数和(自身を除く): 21355124

約数列:

[1, 2, 4, 7, 14, 28, 383, 766, 1532, 1979, 2681, 3958, 5362, 7916, 10724, 13853, 27706, 55412, 757957, 1515914, 3031828, 5305699, 10611398, 21222796]

約数ペア:

[(1, 21222796), (2, 10611398), (4, 5305699), (7, 3031828), (14, 1515914), (28, 757957), (383, 55412), (766, 27706), (1532, 13853), (1979, 10724), (2681, 7916), (3958, 5362)]