21105469

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{4091}}^1$

素因数の和:4176

約数の個数: 16

約数和(自身を含む): 26712576

約数和(自身を除く): 5607107

約数列:

[1, 7, 11, 67, 77, 469, 737, 4091, 5159, 28637, 45001, 274097, 315007, 1918679, 3015067, 21105469]

約数ペア:

[(1, 21105469), (7, 3015067), (11, 1918679), (67, 315007), (77, 274097), (469, 45001), (737, 28637), (4091, 5159)]