18658665

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 34507200

約数和(自身を除く): 15848535

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 139, 157, 171, 285, 417, 471, 695, 785, 855, 1251, 1413, 2085, 2355, 2641, 2983, 6255, 7065, 7923, 8949, 13205, 14915, 21823, 23769, 26847, 39615, 44745, 65469, 109115, 118845, 134235, 196407, 327345, 414637, 982035, 1243911, 2073185, 3731733, 6219555, 18658665]

約数ペア:

[(1, 18658665), (3, 6219555), (5, 3731733), (9, 2073185), (15, 1243911), (19, 982035), (45, 414637), (57, 327345), (95, 196407), (139, 134235), (157, 118845), (171, 109115), (285, 65469), (417, 44745), (471, 39615), (695, 26847), (785, 23769), (855, 21823), (1251, 14915), (1413, 13205), (2085, 8949), (2355, 7923), (2641, 7065), (2983, 6255)]