215483191

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{431}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 277364736

約数和(自身を除く): 61881545

約数列:

[1, 7, 11, 43, 77, 151, 301, 431, 473, 1057, 1661, 3017, 3311, 4741, 6493, 11627, 18533, 33187, 45451, 65081, 71423, 129731, 203863, 455567, 499961, 715891, 1427041, 2798483, 5011237, 19589381, 30783313, 215483191]

約数ペア:

[(1, 215483191), (7, 30783313), (11, 19589381), (43, 5011237), (77, 2798483), (151, 1427041), (301, 715891), (431, 499961), (473, 455567), (1057, 203863), (1661, 129731), (3017, 71423), (3311, 65081), (4741, 45451), (6493, 33187), (11627, 18533)]