19930455

素因数分解:

$3^4\times 5^1\times {\mathrm{49211}}^1$

素因数の和:49228

約数の個数: 20

約数和(自身を含む): 35727912

約数和(自身を除く): 15797457

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 49211, 147633, 246055, 442899, 738165, 1328697, 2214495, 3986091, 6643485, 19930455]

約数ペア:

[(1, 19930455), (3, 6643485), (5, 3986091), (9, 2214495), (15, 1328697), (27, 738165), (45, 442899), (81, 246055), (135, 147633), (405, 49211)]