21956580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{547}}^1$

素因数の和:785

約数の個数: 72

約数和(自身を含む): 67022592

約数和(自身を除く): 45066012

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 223, 446, 547, 669, 892, 1094, 1115, 1338, 1641, 2007, 2188, 2230, 2676, 2735, 3282, 3345, 4014, 4460, 4923, 5470, 6564, 6690, 8028, 8205, 9846, 10035, 10940, 13380, 16410, 19692, 20070, 24615, 32820, 40140, 49230, 98460, 121981, 243962, 365943, 487924, 609905, 731886, 1097829, 1219810, 1463772, 1829715, 2195658, 2439620, 3659430, 4391316, 5489145, 7318860, 10978290, 21956580]

約数ペア:

[(1, 21956580), (2, 10978290), (3, 7318860), (4, 5489145), (5, 4391316), (6, 3659430), (9, 2439620), (10, 2195658), (12, 1829715), (15, 1463772), (18, 1219810), (20, 1097829), (30, 731886), (36, 609905), (45, 487924), (60, 365943), (90, 243962), (180, 121981), (223, 98460), (446, 49230), (547, 40140), (669, 32820), (892, 24615), (1094, 20070), (1115, 19692), (1338, 16410), (1641, 13380), (2007, 10940), (2188, 10035), (2230, 9846), (2676, 8205), (2735, 8028), (3282, 6690), (3345, 6564), (4014, 5470), (4460, 4923)]