21497535

素因数分解:

$3^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{2699}}^1$

素因数の和:2772

約数の個数: 32

約数和(自身を含む): 38880000

約数和(自身を除く): 17382465

約数列:

[1, 3, 5, 9, 15, 27, 45, 59, 135, 177, 295, 531, 885, 1593, 2655, 2699, 7965, 8097, 13495, 24291, 40485, 72873, 121455, 159241, 364365, 477723, 796205, 1433169, 2388615, 4299507, 7165845, 21497535]

約数ペア:

[(1, 21497535), (3, 7165845), (5, 4299507), (9, 2388615), (15, 1433169), (27, 796205), (45, 477723), (59, 364365), (135, 159241), (177, 121455), (295, 72873), (531, 40485), (885, 24291), (1593, 13495), (2655, 8097), (2699, 7965)]