18892035

素因数分解:

$3^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:167

約数の個数: 56

約数和(自身を含む): 34941024

約数和(自身を除く): 16048989

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 73, 81, 135, 213, 219, 243, 355, 365, 405, 639, 657, 729, 1065, 1095, 1215, 1917, 1971, 3195, 3285, 3645, 5183, 5751, 5913, 9585, 9855, 15549, 17253, 17739, 25915, 28755, 29565, 46647, 51759, 53217, 77745, 86265, 88695, 139941, 233235, 258795, 266085, 419823, 699705, 1259469, 2099115, 3778407, 6297345, 18892035]

約数ペア:

[(1, 18892035), (3, 6297345), (5, 3778407), (9, 2099115), (15, 1259469), (27, 699705), (45, 419823), (71, 266085), (73, 258795), (81, 233235), (135, 139941), (213, 88695), (219, 86265), (243, 77745), (355, 53217), (365, 51759), (405, 46647), (639, 29565), (657, 28755), (729, 25915), (1065, 17739), (1095, 17253), (1215, 15549), (1917, 9855), (1971, 9585), (3195, 5913), (3285, 5751), (3645, 5183)]