31560273

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{20507}}^1$

素因数の和:20538

約数の個数: 20

約数和(自身を含む): 49629360

約数和(自身を除く): 18069087

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 20507, 61521, 184563, 389633, 553689, 1168899, 1661067, 3506697, 10520091, 31560273]

約数ペア:

[(1, 31560273), (3, 10520091), (9, 3506697), (19, 1661067), (27, 1168899), (57, 553689), (81, 389633), (171, 184563), (513, 61521), (1539, 20507)]