21000768275

素因数分解:

$5^2\times {\mathrm{59}}^1\times {\mathrm{1471}}^1\times {\mathrm{9679}}^1$

素因数の和:11219

約数の個数: 24

約数和(自身を含む): 26503065600

約数和(自身を除く): 5502297325

約数列:

[1, 5, 25, 59, 295, 1471, 1475, 7355, 9679, 36775, 48395, 86789, 241975, 433945, 571061, 2169725, 2855305, 14237809, 14276525, 71189045, 355945225, 840030731, 4200153655, 21000768275]

約数ペア:

[(1, 21000768275), (5, 4200153655), (25, 840030731), (59, 355945225), (295, 71189045), (1471, 14276525), (1475, 14237809), (7355, 2855305), (9679, 2169725), (36775, 571061), (48395, 433945), (86789, 241975)]