20913420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31687}}^1$

素因数の和:31710

約数の個数: 48

約数和(自身を含む): 63883008

約数和(自身を除く): 42969588

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 31687, 63374, 95061, 126748, 158435, 190122, 316870, 348557, 380244, 475305, 633740, 697114, 950610, 1045671, 1394228, 1742785, 1901220, 2091342, 3485570, 4182684, 5228355, 6971140, 10456710, 20913420]

約数ペア:

[(1, 20913420), (2, 10456710), (3, 6971140), (4, 5228355), (5, 4182684), (6, 3485570), (10, 2091342), (11, 1901220), (12, 1742785), (15, 1394228), (20, 1045671), (22, 950610), (30, 697114), (33, 633740), (44, 475305), (55, 380244), (60, 348557), (66, 316870), (110, 190122), (132, 158435), (165, 126748), (220, 95061), (330, 63374), (660, 31687)]