217879983

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{263}}^1\times {\mathrm{503}}^1$

素因数の和:836

約数の個数: 32

約数和(自身を含む): 329978880

約数和(自身を除く): 112098897

約数列:

[1, 3, 9, 27, 61, 183, 263, 503, 549, 789, 1509, 1647, 2367, 4527, 7101, 13581, 16043, 30683, 48129, 92049, 132289, 144387, 276147, 396867, 433161, 828441, 1190601, 3571803, 8069629, 24208887, 72626661, 217879983]

約数ペア:

[(1, 217879983), (3, 72626661), (9, 24208887), (27, 8069629), (61, 3571803), (183, 1190601), (263, 828441), (503, 433161), (549, 396867), (789, 276147), (1509, 144387), (1647, 132289), (2367, 92049), (4527, 48129), (7101, 30683), (13581, 16043)]