21811829

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{379}}^1$

素因数の和:644

約数の個数: 16

約数和(自身を含む): 24897600

約数和(自身を除く): 3085771

約数列:

[1, 13, 19, 233, 247, 379, 3029, 4427, 4927, 7201, 57551, 88307, 93613, 1147991, 1677833, 21811829]

約数ペア:

[(1, 21811829), (13, 1677833), (19, 1147991), (233, 93613), (247, 88307), (379, 57551), (3029, 7201), (4427, 4927)]