261628515

素因数分解:

$3^3\times 5^1\times {\mathrm{1937989}}^1$

素因数の和:1938003

約数の個数: 16

約数和(自身を含む): 465117600

約数和(自身を除く): 203489085

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1937989, 5813967, 9689945, 17441901, 29069835, 52325703, 87209505, 261628515]

約数ペア:

[(1, 261628515), (3, 87209505), (5, 52325703), (9, 29069835), (15, 17441901), (27, 9689945), (45, 5813967), (135, 1937989)]