221723243

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{691}}^1\times {\mathrm{1993}}^1$

素因数の和:2714

約数の個数: 16

約数和(自身を含む): 264930816

約数和(自身を除く): 43207573

約数列:

[1, 7, 23, 161, 691, 1993, 4837, 13951, 15893, 45839, 111251, 320873, 1377163, 9640141, 31674749, 221723243]

約数ペア:

[(1, 221723243), (7, 31674749), (23, 9640141), (161, 1377163), (691, 320873), (1993, 111251), (4837, 45839), (13951, 15893)]