19201806

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1609}}^1$

素因数の和:1650

約数の個数: 64

約数和(自身を含む): 48686400

約数和(自身を除く): 29484594

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 27, 34, 39, 51, 54, 78, 102, 117, 153, 221, 234, 306, 351, 442, 459, 663, 702, 918, 1326, 1609, 1989, 3218, 3978, 4827, 5967, 9654, 11934, 14481, 20917, 27353, 28962, 41834, 43443, 54706, 62751, 82059, 86886, 125502, 164118, 188253, 246177, 355589, 376506, 492354, 564759, 711178, 738531, 1066767, 1129518, 1477062, 2133534, 3200301, 6400602, 9600903, 19201806]

約数ペア:

[(1, 19201806), (2, 9600903), (3, 6400602), (6, 3200301), (9, 2133534), (13, 1477062), (17, 1129518), (18, 1066767), (26, 738531), (27, 711178), (34, 564759), (39, 492354), (51, 376506), (54, 355589), (78, 246177), (102, 188253), (117, 164118), (153, 125502), (221, 86886), (234, 82059), (306, 62751), (351, 54706), (442, 43443), (459, 41834), (663, 28962), (702, 27353), (918, 20917), (1326, 14481), (1609, 11934), (1989, 9654), (3218, 5967), (3978, 4827)]