19961722

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{179}}^1$

素因数の和:366

約数の個数: 32

約数和(自身を含む): 33981120

約数和(自身を除く): 14019398

約数列:

[1, 2, 11, 22, 37, 74, 137, 179, 274, 358, 407, 814, 1507, 1969, 3014, 3938, 5069, 6623, 10138, 13246, 24523, 49046, 55759, 72853, 111518, 145706, 269753, 539506, 907351, 1814702, 9980861, 19961722]

約数ペア:

[(1, 19961722), (2, 9980861), (11, 1814702), (22, 907351), (37, 539506), (74, 269753), (137, 145706), (179, 111518), (274, 72853), (358, 55759), (407, 49046), (814, 24523), (1507, 13246), (1969, 10138), (3014, 6623), (3938, 5069)]