18885075

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{2081}}^1$

素因数の和:2116

約数の個数: 36

約数和(自身を含む): 34336344

約数和(自身を除く): 15451269

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 121, 165, 275, 363, 605, 825, 1815, 2081, 3025, 6243, 9075, 10405, 22891, 31215, 52025, 68673, 114455, 156075, 251801, 343365, 572275, 755403, 1259005, 1716825, 3777015, 6295025, 18885075]

約数ペア:

[(1, 18885075), (3, 6295025), (5, 3777015), (11, 1716825), (15, 1259005), (25, 755403), (33, 572275), (55, 343365), (75, 251801), (121, 156075), (165, 114455), (275, 68673), (363, 52025), (605, 31215), (825, 22891), (1815, 10405), (2081, 9075), (3025, 6243)]