21201007551

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{229}}^1\times {\mathrm{58337}}^1$

素因数の和:58615

約数の個数: 24

約数和(自身を含む): 29680040880

約数和(自身を除く): 8479033329

約数列:

[1, 3, 23, 69, 229, 529, 687, 1587, 5267, 15801, 58337, 121141, 175011, 363423, 1341751, 4025253, 13359173, 30860273, 40077519, 92580819, 307260979, 921782937, 7067002517, 21201007551]

約数ペア:

[(1, 21201007551), (3, 7067002517), (23, 921782937), (69, 307260979), (229, 92580819), (529, 40077519), (687, 30860273), (1587, 13359173), (5267, 4025253), (15801, 1341751), (58337, 363423), (121141, 175011)]