217426559

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{641}}^1\times {\mathrm{1031}}^1$

素因数の和:1726

約数の個数: 16

約数和(自身を含む): 254416896

約数和(自身を除く): 36990337

約数列:

[1, 7, 47, 329, 641, 1031, 4487, 7217, 30127, 48457, 210889, 339199, 660871, 4626097, 31060937, 217426559]

約数ペア:

[(1, 217426559), (7, 31060937), (47, 4626097), (329, 660871), (641, 339199), (1031, 210889), (4487, 48457), (7217, 30127)]