251215679

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 303367680

約数和(自身を除く): 52152001

約数列:

[1, 11, 13, 71, 109, 143, 227, 781, 923, 1199, 1417, 2497, 2951, 7739, 10153, 15587, 16117, 24743, 32461, 85129, 100607, 177287, 209521, 272173, 321659, 1106677, 1756753, 2304731, 3538249, 19324283, 22837789, 251215679]

約数ペア:

[(1, 251215679), (11, 22837789), (13, 19324283), (71, 3538249), (109, 2304731), (143, 1756753), (227, 1106677), (781, 321659), (923, 272173), (1199, 209521), (1417, 177287), (2497, 100607), (2951, 85129), (7739, 32461), (10153, 24743), (15587, 16117)]