21265389

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{41453}}^1$

素因数の和:41481

約数の個数: 16

約数和(自身を含む): 33163200

約数和(自身を除く): 11897811

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 41453, 124359, 373077, 787607, 1119231, 2362821, 7088463, 21265389]

約数ペア:

[(1, 21265389), (3, 7088463), (9, 2362821), (19, 1119231), (27, 787607), (57, 373077), (171, 124359), (513, 41453)]