19998352

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{83}}^1$

素因数の和:176

約数の個数: 60

約数和(自身を含む): 43965936

約数和(自身を除く): 23967584

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 44, 74, 83, 88, 148, 166, 176, 296, 332, 407, 592, 664, 814, 913, 1328, 1369, 1628, 1826, 2738, 3071, 3256, 3652, 5476, 6142, 6512, 7304, 10952, 12284, 14608, 15059, 21904, 24568, 30118, 33781, 49136, 60236, 67562, 113627, 120472, 135124, 227254, 240944, 270248, 454508, 540496, 909016, 1249897, 1818032, 2499794, 4999588, 9999176, 19998352]

約数ペア:

[(1, 19998352), (2, 9999176), (4, 4999588), (8, 2499794), (11, 1818032), (16, 1249897), (22, 909016), (37, 540496), (44, 454508), (74, 270248), (83, 240944), (88, 227254), (148, 135124), (166, 120472), (176, 113627), (296, 67562), (332, 60236), (407, 49136), (592, 33781), (664, 30118), (814, 24568), (913, 21904), (1328, 15059), (1369, 14608), (1628, 12284), (1826, 10952), (2738, 7304), (3071, 6512), (3256, 6142), (3652, 5476)]