193945921

素因数分解:

${\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{367}}^1$

素因数の和:505

約数の個数: 24

約数和(自身を含む): 218194560

約数和(自身を除く): 24248639

約数列:

[1, 13, 53, 59, 169, 367, 689, 767, 3127, 4771, 8957, 9971, 19451, 21653, 40651, 62023, 252863, 281489, 528463, 1147609, 3287219, 3659357, 14918917, 193945921]

約数ペア:

[(1, 193945921), (13, 14918917), (53, 3659357), (59, 3287219), (169, 1147609), (367, 528463), (689, 281489), (767, 252863), (3127, 62023), (4771, 40651), (8957, 21653), (9971, 19451)]