19943888

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{571}}^1$

素因数の和:675

約数の個数: 40

約数和(自身を含む): 40428960

約数和(自身を除く): 20485072

約数列:

[1, 2, 4, 8, 16, 37, 59, 74, 118, 148, 236, 296, 472, 571, 592, 944, 1142, 2183, 2284, 4366, 4568, 8732, 9136, 17464, 21127, 33689, 34928, 42254, 67378, 84508, 134756, 169016, 269512, 338032, 539024, 1246493, 2492986, 4985972, 9971944, 19943888]

約数ペア:

[(1, 19943888), (2, 9971944), (4, 4985972), (8, 2492986), (16, 1246493), (37, 539024), (59, 338032), (74, 269512), (118, 169016), (148, 134756), (236, 84508), (296, 67378), (472, 42254), (571, 34928), (592, 33689), (944, 21127), (1142, 17464), (2183, 9136), (2284, 8732), (4366, 4568)]