20921063

素因数分解:

${\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1$

素因数の和:334

約数の個数: 16

約数和(自身を含む): 22450176

約数和(自身を除く): 1529113

約数列:

[1, 31, 47, 83, 173, 1457, 2573, 3901, 5363, 8131, 14359, 120931, 252061, 445129, 674873, 20921063]

約数ペア:

[(1, 20921063), (31, 674873), (47, 445129), (83, 252061), (173, 120931), (1457, 14359), (2573, 8131), (3901, 5363)]