19703203

素因数分解:

${\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:223

約数の個数: 24

約数和(自身を含む): 23031648

約数和(自身を除く): 3328445

約数列:

[1, 13, 23, 37, 137, 169, 299, 481, 851, 1781, 3151, 3887, 5069, 6253, 11063, 23153, 40963, 65897, 116587, 143819, 532519, 856661, 1515631, 19703203]

約数ペア:

[(1, 19703203), (13, 1515631), (23, 856661), (37, 532519), (137, 143819), (169, 116587), (299, 65897), (481, 40963), (851, 23153), (1781, 11063), (3151, 6253), (3887, 5069)]