20956403

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{349}}^1$

素因数の和:542

約数の個数: 16

約数和(自身を含む): 23520000

約数和(自身を除く): 2563597

約数列:

[1, 13, 31, 149, 349, 403, 1937, 4537, 4619, 10819, 52001, 60047, 140647, 676013, 1612031, 20956403]

約数ペア:

[(1, 20956403), (13, 1612031), (31, 676013), (149, 140647), (349, 60047), (403, 52001), (1937, 10819), (4537, 4619)]