19625415

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{30427}}^1$

素因数の和:30478

約数の個数: 16

約数和(自身を含む): 32131968

約数和(自身を除く): 12506553

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 30427, 91281, 152135, 456405, 1308361, 3925083, 6541805, 19625415]

約数ペア:

[(1, 19625415), (3, 6541805), (5, 3925083), (15, 1308361), (43, 456405), (129, 152135), (215, 91281), (645, 30427)]