21192015

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108677}}^1$

素因数の和:108698

約数の個数: 16

約数和(自身を含む): 36515808

約数和(自身を除く): 15323793

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 108677, 326031, 543385, 1412801, 1630155, 4238403, 7064005, 21192015]

約数ペア:

[(1, 21192015), (3, 7064005), (5, 4238403), (13, 1630155), (15, 1412801), (39, 543385), (65, 326031), (195, 108677)]