21301575

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{6043}}^1$

素因数の和:6103

約数の個数: 24

約数和(自身を含む): 35973888

約数和(自身を除く): 14672313

約数列:

[1, 3, 5, 15, 25, 47, 75, 141, 235, 705, 1175, 3525, 6043, 18129, 30215, 90645, 151075, 284021, 453225, 852063, 1420105, 4260315, 7100525, 21301575]

約数ペア:

[(1, 21301575), (3, 7100525), (5, 4260315), (15, 1420105), (25, 852063), (47, 453225), (75, 284021), (141, 151075), (235, 90645), (705, 30215), (1175, 18129), (3525, 6043)]