217165563

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{2347}}^1$

素因数の和:2528

約数の個数: 32

約数和(自身を含む): 338112000

約数和(自身を除く): 120946437

約数列:

[1, 3, 9, 23, 27, 69, 149, 207, 447, 621, 1341, 2347, 3427, 4023, 7041, 10281, 21123, 30843, 53981, 63369, 92529, 161943, 349703, 485829, 1049109, 1457487, 3147327, 8043169, 9441981, 24129507, 72388521, 217165563]

約数ペア:

[(1, 217165563), (3, 72388521), (9, 24129507), (23, 9441981), (27, 8043169), (69, 3147327), (149, 1457487), (207, 1049109), (447, 485829), (621, 349703), (1341, 161943), (2347, 92529), (3427, 63369), (4023, 53981), (7041, 30843), (10281, 21123)]