20178028

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{2243}}^1$

素因数の和:2433

約数の個数: 24

約数和(自身を含む): 38264688

約数和(自身を除く): 18086660

約数列:

[1, 2, 4, 13, 26, 52, 173, 346, 692, 2243, 2249, 4486, 4498, 8972, 8996, 29159, 58318, 116636, 388039, 776078, 1552156, 5044507, 10089014, 20178028]

約数ペア:

[(1, 20178028), (2, 10089014), (4, 5044507), (13, 1552156), (26, 776078), (52, 388039), (173, 116636), (346, 58318), (692, 29159), (2243, 8996), (2249, 8972), (4486, 4498)]