21759925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1181}}^1$

素因数の和:1269

約数の個数: 24

約数和(自身を含む): 29899872

約数和(自身を除く): 8139947

約数列:

[1, 5, 11, 25, 55, 67, 275, 335, 737, 1181, 1675, 3685, 5905, 12991, 18425, 29525, 64955, 79127, 324775, 395635, 870397, 1978175, 4351985, 21759925]

約数ペア:

[(1, 21759925), (5, 4351985), (11, 1978175), (25, 870397), (55, 395635), (67, 324775), (275, 79127), (335, 64955), (737, 29525), (1181, 18425), (1675, 12991), (3685, 5905)]