21233432

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2389}}^1$

素因数の和:2507

約数の個数: 32

約数和(自身を含む): 43880400

約数和(自身を除く): 22646968

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 101, 202, 404, 808, 1111, 2222, 2389, 4444, 4778, 8888, 9556, 19112, 26279, 52558, 105116, 210232, 241289, 482578, 965156, 1930312, 2654179, 5308358, 10616716, 21233432]

約数ペア:

[(1, 21233432), (2, 10616716), (4, 5308358), (8, 2654179), (11, 1930312), (22, 965156), (44, 482578), (88, 241289), (101, 210232), (202, 105116), (404, 52558), (808, 26279), (1111, 19112), (2222, 9556), (2389, 8888), (4444, 4778)]