18980778

素因数分解:

$2^1\times 3^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1\times {\mathrm{443}}^1$

素因数の和:678

約数の個数: 32

約数和(自身を含む): 39278016

約数和(自身を除く): 20297238

約数列:

[1, 2, 3, 6, 37, 74, 111, 193, 222, 386, 443, 579, 886, 1158, 1329, 2658, 7141, 14282, 16391, 21423, 32782, 42846, 49173, 85499, 98346, 170998, 256497, 512994, 3163463, 6326926, 9490389, 18980778]

約数ペア:

[(1, 18980778), (2, 9490389), (3, 6326926), (6, 3163463), (37, 512994), (74, 256497), (111, 170998), (193, 98346), (222, 85499), (386, 49173), (443, 42846), (579, 32782), (886, 21423), (1158, 16391), (1329, 14282), (2658, 7141)]