20123808439

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{43597}}^1$

素因数の和:43735

約数の個数: 32

約数和(自身を含む): 24911548416

約数和(自身を除く): 4787739977

約数列:

[1, 7, 23, 47, 61, 161, 329, 427, 1081, 1403, 2867, 7567, 9821, 20069, 43597, 65941, 305179, 461587, 1002731, 2049059, 2659417, 7019117, 14343413, 18615919, 47128357, 61166591, 124992599, 329898499, 428166137, 874948193, 2874829777, 20123808439]

約数ペア:

[(1, 20123808439), (7, 2874829777), (23, 874948193), (47, 428166137), (61, 329898499), (161, 124992599), (329, 61166591), (427, 47128357), (1081, 18615919), (1403, 14343413), (2867, 7019117), (7567, 2659417), (9821, 2049059), (20069, 1002731), (43597, 461587), (65941, 305179)]