18715105

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{1427}}^1$

素因数の和:1536

約数の個数: 16

約数和(自身を含む): 23373504

約数和(自身を除く): 4658399

約数列:

[1, 5, 43, 61, 215, 305, 1427, 2623, 7135, 13115, 61361, 87047, 306805, 435235, 3743021, 18715105]

約数ペア:

[(1, 18715105), (5, 3743021), (43, 435235), (61, 306805), (215, 87047), (305, 61361), (1427, 13115), (2623, 7135)]