19951251

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 29494080

約数和(自身を除く): 9542829

約数列:

[1, 3, 17, 37, 51, 97, 109, 111, 291, 327, 629, 1649, 1853, 1887, 3589, 4033, 4947, 5559, 10573, 10767, 12099, 31719, 61013, 68561, 179741, 183039, 205683, 391201, 539223, 1173603, 6650417, 19951251]

約数ペア:

[(1, 19951251), (3, 6650417), (17, 1173603), (37, 539223), (51, 391201), (97, 205683), (109, 183039), (111, 179741), (291, 68561), (327, 61013), (629, 31719), (1649, 12099), (1853, 10767), (1887, 10573), (3589, 5559), (4033, 4947)]