213550561

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{6733}}^1$

素因数の和:6960

約数の個数: 16

約数和(自身を含む): 255999744

約数和(自身を除く): 42449183

約数列:

[1, 7, 23, 161, 197, 1379, 4531, 6733, 31717, 47131, 154859, 1084013, 1326401, 9284807, 30507223, 213550561]

約数ペア:

[(1, 213550561), (7, 30507223), (23, 9284807), (161, 1326401), (197, 1084013), (1379, 154859), (4531, 47131), (6733, 31717)]