21402948

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4177}}^1$

素因数の和:4252

約数の個数: 48

約数和(自身を含む): 58024064

約数和(自身を除く): 36621116

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 61, 84, 122, 183, 244, 366, 427, 732, 854, 1281, 1708, 2562, 4177, 5124, 8354, 12531, 16708, 25062, 29239, 50124, 58478, 87717, 116956, 175434, 254797, 350868, 509594, 764391, 1019188, 1528782, 1783579, 3057564, 3567158, 5350737, 7134316, 10701474, 21402948]

約数ペア:

[(1, 21402948), (2, 10701474), (3, 7134316), (4, 5350737), (6, 3567158), (7, 3057564), (12, 1783579), (14, 1528782), (21, 1019188), (28, 764391), (42, 509594), (61, 350868), (84, 254797), (122, 175434), (183, 116956), (244, 87717), (366, 58478), (427, 50124), (732, 29239), (854, 25062), (1281, 16708), (1708, 12531), (2562, 8354), (4177, 5124)]