21062275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{283}}^1$

素因数の和:535

約数の個数: 24

約数和(自身を含む): 28348880

約数和(自身を除く): 7286605

約数列:

[1, 5, 13, 25, 65, 229, 283, 325, 1145, 1415, 2977, 3679, 5725, 7075, 14885, 18395, 64807, 74425, 91975, 324035, 842491, 1620175, 4212455, 21062275]

約数ペア:

[(1, 21062275), (5, 4212455), (13, 1620175), (25, 842491), (65, 324035), (229, 91975), (283, 74425), (325, 64807), (1145, 18395), (1415, 14885), (2977, 7075), (3679, 5725)]