221393885

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{6911}}^1$

素因数の和:7108

約数の個数: 16

約数和(自身を含む): 273715200

約数和(自身を除く): 52321315

約数列:

[1, 5, 43, 149, 215, 745, 6407, 6911, 32035, 34555, 297173, 1029739, 1485865, 5148695, 44278777, 221393885]

約数ペア:

[(1, 221393885), (5, 44278777), (43, 5148695), (149, 1485865), (215, 1029739), (745, 297173), (6407, 34555), (6911, 32035)]