221505753

素因数分解:

$3^1\times 7^1\times {\mathrm{163}}^2\times {\mathrm{397}}^1$

素因数の和:733

約数の個数: 24

約数和(自身を含む): 340471488

約数和(自身を除く): 118965735

約数列:

[1, 3, 7, 21, 163, 397, 489, 1141, 1191, 2779, 3423, 8337, 26569, 64711, 79707, 185983, 194133, 452977, 557949, 1358931, 10547893, 31643679, 73835251, 221505753]

約数ペア:

[(1, 221505753), (3, 73835251), (7, 31643679), (21, 10547893), (163, 1358931), (397, 557949), (489, 452977), (1141, 194133), (1191, 185983), (2779, 79707), (3423, 64711), (8337, 26569)]