21690344

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2857}}^1$

素因数の和:2949

約数の個数: 32

約数和(自身を含む): 44413320

約数和(自身を除く): 22722976

約数列:

[1, 2, 4, 8, 13, 26, 52, 73, 104, 146, 292, 584, 949, 1898, 2857, 3796, 5714, 7592, 11428, 22856, 37141, 74282, 148564, 208561, 297128, 417122, 834244, 1668488, 2711293, 5422586, 10845172, 21690344]

約数ペア:

[(1, 21690344), (2, 10845172), (4, 5422586), (8, 2711293), (13, 1668488), (26, 834244), (52, 417122), (73, 297128), (104, 208561), (146, 148564), (292, 74282), (584, 37141), (949, 22856), (1898, 11428), (2857, 7592), (3796, 5714)]