251444535

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{691}}^1\times {\mathrm{1427}}^1$

素因数の和:2143

約数の個数: 32

約数和(自身を含む): 426892032

約数和(自身を除く): 175447497

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 691, 1427, 2073, 3455, 4281, 7135, 10365, 11747, 21405, 24259, 35241, 58735, 72777, 121295, 176205, 363885, 986057, 2958171, 4930285, 14790855, 16762969, 50288907, 83814845, 251444535]

約数ペア:

[(1, 251444535), (3, 83814845), (5, 50288907), (15, 16762969), (17, 14790855), (51, 4930285), (85, 2958171), (255, 986057), (691, 363885), (1427, 176205), (2073, 121295), (3455, 72777), (4281, 58735), (7135, 35241), (10365, 24259), (11747, 21405)]