21006544

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4391}}^1$

素因数の和:4435

約数の個数: 40

約数和(自身を含む): 45747072

約数和(自身を除く): 24740528

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 46, 52, 92, 104, 184, 208, 299, 368, 598, 1196, 2392, 4391, 4784, 8782, 17564, 35128, 57083, 70256, 100993, 114166, 201986, 228332, 403972, 456664, 807944, 913328, 1312909, 1615888, 2625818, 5251636, 10503272, 21006544]

約数ペア:

[(1, 21006544), (2, 10503272), (4, 5251636), (8, 2625818), (13, 1615888), (16, 1312909), (23, 913328), (26, 807944), (46, 456664), (52, 403972), (92, 228332), (104, 201986), (184, 114166), (208, 100993), (299, 70256), (368, 57083), (598, 35128), (1196, 17564), (2392, 8782), (4391, 4784)]