21727925

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{307}}^1$

素因数の和:485

約数の個数: 24

約数和(自身を含む): 28644000

約数和(自身を除く): 6916075

約数列:

[1, 5, 19, 25, 95, 149, 307, 475, 745, 1535, 2831, 3725, 5833, 7675, 14155, 29165, 45743, 70775, 145825, 228715, 869117, 1143575, 4345585, 21727925]

約数ペア:

[(1, 21727925), (5, 4345585), (19, 1143575), (25, 869117), (95, 228715), (149, 145825), (307, 70775), (475, 45743), (745, 29165), (1535, 14155), (2831, 7675), (3725, 5833)]