21491432

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4561}}^1$

素因数の和:4617

約数の個数: 32

約数和(自身を含む): 43795200

約数和(自身を除く): 22303768

約数列:

[1, 2, 4, 8, 19, 31, 38, 62, 76, 124, 152, 248, 589, 1178, 2356, 4561, 4712, 9122, 18244, 36488, 86659, 141391, 173318, 282782, 346636, 565564, 693272, 1131128, 2686429, 5372858, 10745716, 21491432]

約数ペア:

[(1, 21491432), (2, 10745716), (4, 5372858), (8, 2686429), (19, 1131128), (31, 693272), (38, 565564), (62, 346636), (76, 282782), (124, 173318), (152, 141391), (248, 86659), (589, 36488), (1178, 18244), (2356, 9122), (4561, 4712)]