287391279

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{313}}^1\times {\mathrm{1901}}^1$

素因数の和:2247

約数の個数: 32

約数和(自身を含む): 458671104

約数和(自身を除く): 171279825

約数列:

[1, 3, 7, 21, 23, 69, 161, 313, 483, 939, 1901, 2191, 5703, 6573, 7199, 13307, 21597, 39921, 43723, 50393, 131169, 151179, 306061, 595013, 918183, 1785039, 4165091, 12495273, 13685299, 41055897, 95797093, 287391279]

約数ペア:

[(1, 287391279), (3, 95797093), (7, 41055897), (21, 13685299), (23, 12495273), (69, 4165091), (161, 1785039), (313, 918183), (483, 595013), (939, 306061), (1901, 151179), (2191, 131169), (5703, 50393), (6573, 43723), (7199, 39921), (13307, 21597)]