215902011

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{4153}}^1$

素因数の和:4243

約数の個数: 32

約数和(自身を含む): 327534592

約数和(自身を除く): 111632581

約数列:

[1, 3, 13, 31, 39, 43, 93, 129, 403, 559, 1209, 1333, 1677, 3999, 4153, 12459, 17329, 51987, 53989, 128743, 161967, 178579, 386229, 535737, 1673659, 2321527, 5020977, 5535949, 6964581, 16607847, 71967337, 215902011]

約数ペア:

[(1, 215902011), (3, 71967337), (13, 16607847), (31, 6964581), (39, 5535949), (43, 5020977), (93, 2321527), (129, 1673659), (403, 535737), (559, 386229), (1209, 178579), (1333, 161967), (1677, 128743), (3999, 53989), (4153, 51987), (12459, 17329)]