20901135

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1289}}^1$

素因数の和:1367

約数の個数: 32

約数和(自身を含む): 35665920

約数和(自身を除く): 14764785

約数列:

[1, 3, 5, 15, 23, 47, 69, 115, 141, 235, 345, 705, 1081, 1289, 3243, 3867, 5405, 6445, 16215, 19335, 29647, 60583, 88941, 148235, 181749, 302915, 444705, 908745, 1393409, 4180227, 6967045, 20901135]

約数ペア:

[(1, 20901135), (3, 6967045), (5, 4180227), (15, 1393409), (23, 908745), (47, 444705), (69, 302915), (115, 181749), (141, 148235), (235, 88941), (345, 60583), (705, 29647), (1081, 19335), (1289, 16215), (3243, 6445), (3867, 5405)]