19912995361

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{21277}}^1\times {\mathrm{5813}}^1$

素因数の和:27120

約数の個数: 16

約数和(自身を含む): 23752376064

約数和(自身を除く): 3839380703

約数列:

[1, 7, 23, 161, 5813, 21277, 40691, 133699, 148939, 489371, 935893, 3425597, 123683201, 865782407, 2844713623, 19912995361]

約数ペア:

[(1, 19912995361), (7, 2844713623), (23, 865782407), (161, 123683201), (5813, 3425597), (21277, 935893), (40691, 489371), (133699, 148939)]