18644665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{359}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 7482695

約数列:

[1, 5, 13, 17, 47, 65, 85, 221, 235, 359, 611, 799, 1105, 1795, 3055, 3995, 4667, 6103, 10387, 16873, 23335, 30515, 51935, 79339, 84365, 219349, 286841, 396695, 1096745, 1434205, 3728933, 18644665]

約数ペア:

[(1, 18644665), (5, 3728933), (13, 1434205), (17, 1096745), (47, 396695), (65, 286841), (85, 219349), (221, 84365), (235, 79339), (359, 51935), (611, 30515), (799, 23335), (1105, 16873), (1795, 10387), (3055, 6103), (3995, 4667)]