19739006

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{421}}^1$

素因数の和:644

約数の個数: 32

約数和(自身を含む): 36096192

約数和(自身を除く): 16357186

約数列:

[1, 2, 7, 14, 17, 34, 119, 197, 238, 394, 421, 842, 1379, 2758, 2947, 3349, 5894, 6698, 7157, 14314, 23443, 46886, 50099, 82937, 100198, 165874, 580559, 1161118, 1409929, 2819858, 9869503, 19739006]

約数ペア:

[(1, 19739006), (2, 9869503), (7, 2819858), (14, 1409929), (17, 1161118), (34, 580559), (119, 165874), (197, 100198), (238, 82937), (394, 50099), (421, 46886), (842, 23443), (1379, 14314), (2758, 7157), (2947, 6698), (3349, 5894)]