19967985

素因数分解:

$3^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{701}}^1$

素因数の和:926

約数の個数: 32

約数和(自身を含む): 35717760

約数和(自身を除く): 15749775

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 211, 633, 701, 1055, 1899, 2103, 3165, 3505, 5697, 6309, 9495, 10515, 18927, 28485, 31545, 94635, 147911, 443733, 739555, 1331199, 2218665, 3993597, 6655995, 19967985]

約数ペア:

[(1, 19967985), (3, 6655995), (5, 3993597), (9, 2218665), (15, 1331199), (27, 739555), (45, 443733), (135, 147911), (211, 94635), (633, 31545), (701, 28485), (1055, 18927), (1899, 10515), (2103, 9495), (3165, 6309), (3505, 5697)]