21377481605

素因数分解:

$5^1\times {\mathrm{43}}^2\times {\mathrm{751}}^1\times {\mathrm{3079}}^1$

素因数の和:3921

約数の個数: 24

約数和(自身を含む): 26306945280

約数和(自身を除く): 4929463675

約数列:

[1, 5, 43, 215, 751, 1849, 3079, 3755, 9245, 15395, 32293, 132397, 161465, 661985, 1388599, 2312329, 5693071, 6942995, 11561645, 28465355, 99430147, 497150735, 4275496321, 21377481605]

約数ペア:

[(1, 21377481605), (5, 4275496321), (43, 497150735), (215, 99430147), (751, 28465355), (1849, 11561645), (3079, 6942995), (3755, 5693071), (9245, 2312329), (15395, 1388599), (32293, 661985), (132397, 161465)]