21281490

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{236461}}^1$

素因数の和:236474

約数の個数: 24

約数和(自身を含む): 55332108

約数和(自身を除く): 34050618

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 236461, 472922, 709383, 1182305, 1418766, 2128149, 2364610, 3546915, 4256298, 7093830, 10640745, 21281490]

約数ペア:

[(1, 21281490), (2, 10640745), (3, 7093830), (5, 4256298), (6, 3546915), (9, 2364610), (10, 2128149), (15, 1418766), (18, 1182305), (30, 709383), (45, 472922), (90, 236461)]