21472425

素因数分解:

$3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2447}}^1$

素因数の和:2479

約数の個数: 48

約数和(自身を含む): 42497280

約数和(自身を除く): 21024855

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 117, 135, 195, 225, 325, 351, 585, 675, 975, 1755, 2447, 2925, 7341, 8775, 12235, 22023, 31811, 36705, 61175, 66069, 95433, 110115, 159055, 183525, 286299, 330345, 477165, 550575, 795275, 858897, 1431495, 1651725, 2385825, 4294485, 7157475, 21472425]

約数ペア:

[(1, 21472425), (3, 7157475), (5, 4294485), (9, 2385825), (13, 1651725), (15, 1431495), (25, 858897), (27, 795275), (39, 550575), (45, 477165), (65, 330345), (75, 286299), (117, 183525), (135, 159055), (195, 110115), (225, 95433), (325, 66069), (351, 61175), (585, 36705), (675, 31811), (975, 22023), (1755, 12235), (2447, 8775), (2925, 7341)]