21040016

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{751}}^1$

素因数の和:879

約数の個数: 40

約数和(自身を含む): 43640064

約数和(自身を除く): 22600048

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 103, 136, 206, 272, 412, 751, 824, 1502, 1648, 1751, 3004, 3502, 6008, 7004, 12016, 12767, 14008, 25534, 28016, 51068, 77353, 102136, 154706, 204272, 309412, 618824, 1237648, 1315001, 2630002, 5260004, 10520008, 21040016]

約数ペア:

[(1, 21040016), (2, 10520008), (4, 5260004), (8, 2630002), (16, 1315001), (17, 1237648), (34, 618824), (68, 309412), (103, 204272), (136, 154706), (206, 102136), (272, 77353), (412, 51068), (751, 28016), (824, 25534), (1502, 14008), (1648, 12767), (1751, 12016), (3004, 7004), (3502, 6008)]