71867943

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{18701}}^1$

素因数の和:18775

約数の個数: 24

約数和(自身を含む): 120590496

約数和(自身を除く): 48722553

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 18701, 56103, 130907, 168309, 392721, 1140761, 1178163, 3422283, 7985327, 10266849, 23955981, 71867943]

約数ペア:

[(1, 71867943), (3, 23955981), (7, 10266849), (9, 7985327), (21, 3422283), (61, 1178163), (63, 1140761), (183, 392721), (427, 168309), (549, 130907), (1281, 56103), (3843, 18701)]