1991955

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 3714048

約数和(自身を除く): 1722093

約数列:

[1, 3, 5, 7, 15, 21, 35, 61, 105, 183, 305, 311, 427, 915, 933, 1281, 1555, 2135, 2177, 4665, 6405, 6531, 10885, 18971, 32655, 56913, 94855, 132797, 284565, 398391, 663985, 1991955]

約数ペア:

[(1, 1991955), (3, 663985), (5, 398391), (7, 284565), (15, 132797), (21, 94855), (35, 56913), (61, 32655), (105, 18971), (183, 10885), (305, 6531), (311, 6405), (427, 4665), (915, 2177), (933, 2135), (1281, 1555)]