256098507

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1\times {\mathrm{1993}}^1$

素因数の和:2243

約数の個数: 32

約数和(自身を含む): 405818880

約数和(自身を除く): 149720373

約数列:

[1, 3, 7, 21, 29, 87, 203, 211, 609, 633, 1477, 1993, 4431, 5979, 6119, 13951, 18357, 41853, 42833, 57797, 128499, 173391, 404579, 420523, 1213737, 1261569, 2943661, 8830983, 12195167, 36585501, 85366169, 256098507]

約数ペア:

[(1, 256098507), (3, 85366169), (7, 36585501), (21, 12195167), (29, 8830983), (87, 2943661), (203, 1261569), (211, 1213737), (609, 420523), (633, 404579), (1477, 173391), (1993, 128499), (4431, 57797), (5979, 42833), (6119, 41853), (13951, 18357)]