21840212

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{173}}^1\times {\mathrm{853}}^1$

素因数の和:1067

約数の個数: 24

約数和(自身を含む): 39526536

約数和(自身を除く): 17686324

約数列:

[1, 2, 4, 37, 74, 148, 173, 346, 692, 853, 1706, 3412, 6401, 12802, 25604, 31561, 63122, 126244, 147569, 295138, 590276, 5460053, 10920106, 21840212]

約数ペア:

[(1, 21840212), (2, 10920106), (4, 5460053), (37, 590276), (74, 295138), (148, 147569), (173, 126244), (346, 63122), (692, 31561), (853, 25604), (1706, 12802), (3412, 6401)]