19967937

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:325

約数の個数: 32

約数和(自身を含む): 30412800

約数和(自身を除く): 10444863

約数列:

[1, 3, 11, 31, 33, 93, 131, 149, 341, 393, 447, 1023, 1441, 1639, 4061, 4323, 4619, 4917, 12183, 13857, 19519, 44671, 50809, 58557, 134013, 152427, 214709, 605089, 644127, 1815267, 6655979, 19967937]

約数ペア:

[(1, 19967937), (3, 6655979), (11, 1815267), (31, 644127), (33, 605089), (93, 214709), (131, 152427), (149, 134013), (341, 58557), (393, 50809), (447, 44671), (1023, 19519), (1441, 13857), (1639, 12183), (4061, 4917), (4323, 4619)]