278825169

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{353}}^1\times {\mathrm{1297}}^1$

素因数の和:1689

約数の個数: 32

約数和(自身を含む): 441112320

約数和(自身を除く): 162287151

約数列:

[1, 3, 7, 21, 29, 87, 203, 353, 609, 1059, 1297, 2471, 3891, 7413, 9079, 10237, 27237, 30711, 37613, 71659, 112839, 214977, 263291, 457841, 789873, 1373523, 3204887, 9614661, 13277389, 39832167, 92941723, 278825169]

約数ペア:

[(1, 278825169), (3, 92941723), (7, 39832167), (21, 13277389), (29, 9614661), (87, 3204887), (203, 1373523), (353, 789873), (609, 457841), (1059, 263291), (1297, 214977), (2471, 112839), (3891, 71659), (7413, 37613), (9079, 30711), (10237, 27237)]