1330981281

素因数分解:

$3^3\times 7^1\times {\mathrm{7042229}}^1$

素因数の和:7042245

約数の個数: 16

約数和(自身を含む): 2253513600

約数和(自身を除く): 922532319

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 7042229, 21126687, 49295603, 63380061, 147886809, 190140183, 443660427, 1330981281]

約数ペア:

[(1, 1330981281), (3, 443660427), (7, 190140183), (9, 147886809), (21, 63380061), (27, 49295603), (63, 21126687), (189, 7042229)]