20921384

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{21613}}^1$

素因数の和:21641

約数の個数: 24

約数和(自身を含む): 43119930

約数和(自身を除く): 22198546

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 242, 484, 968, 21613, 43226, 86452, 172904, 237743, 475486, 950972, 1901944, 2615173, 5230346, 10460692, 20921384]

約数ペア:

[(1, 20921384), (2, 10460692), (4, 5230346), (8, 2615173), (11, 1901944), (22, 950972), (44, 475486), (88, 237743), (121, 172904), (242, 86452), (484, 43226), (968, 21613)]