21988646

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1\times {\mathrm{617}}^1$

素因数の和:895

約数の個数: 16

約数和(自身を含む): 33549984

約数和(自身を除く): 11561338

約数列:

[1, 2, 103, 173, 206, 346, 617, 1234, 17819, 35638, 63551, 106741, 127102, 213482, 10994323, 21988646]

約数ペア:

[(1, 21988646), (2, 10994323), (103, 213482), (173, 127102), (206, 106741), (346, 63551), (617, 35638), (1234, 17819)]