21535088

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{277}}^1$

素因数の和:441

約数の個数: 40

約数和(自身を含む): 43227888

約数和(自身を除く): 21692800

約数列:

[1, 2, 4, 8, 16, 43, 86, 113, 172, 226, 277, 344, 452, 554, 688, 904, 1108, 1808, 2216, 4432, 4859, 9718, 11911, 19436, 23822, 31301, 38872, 47644, 62602, 77744, 95288, 125204, 190576, 250408, 500816, 1345943, 2691886, 5383772, 10767544, 21535088]

約数ペア:

[(1, 21535088), (2, 10767544), (4, 5383772), (8, 2691886), (16, 1345943), (43, 500816), (86, 250408), (113, 190576), (172, 125204), (226, 95288), (277, 77744), (344, 62602), (452, 47644), (554, 38872), (688, 31301), (904, 23822), (1108, 19436), (1808, 11911), (2216, 9718), (4432, 4859)]