21181295

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{3779}}^1$

素因数の和:3862

約数の個数: 16

約数和(自身を含む): 27216000

約数和(自身を除く): 6034705

約数列:

[1, 5, 19, 59, 95, 295, 1121, 3779, 5605, 18895, 71801, 222961, 359005, 1114805, 4236259, 21181295]

約数ペア:

[(1, 21181295), (5, 4236259), (19, 1114805), (59, 359005), (95, 222961), (295, 71801), (1121, 18895), (3779, 5605)]