21064215

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{23021}}^1$

素因数の和:23090

約数の個数: 16

約数和(自身を含む): 34256736

約数和(自身を除く): 13192521

約数列:

[1, 3, 5, 15, 61, 183, 305, 915, 23021, 69063, 115105, 345315, 1404281, 4212843, 7021405, 21064215]

約数ペア:

[(1, 21064215), (3, 7021405), (5, 4212843), (15, 1404281), (61, 345315), (183, 115105), (305, 69063), (915, 23021)]