21490832

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{5309}}^1$

素因数の和:5351

約数の個数: 40

約数和(自身を含む): 47407680

約数和(自身を除く): 25916848

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 44, 46, 88, 92, 176, 184, 253, 368, 506, 1012, 2024, 4048, 5309, 10618, 21236, 42472, 58399, 84944, 116798, 122107, 233596, 244214, 467192, 488428, 934384, 976856, 1343177, 1953712, 2686354, 5372708, 10745416, 21490832]

約数ペア:

[(1, 21490832), (2, 10745416), (4, 5372708), (8, 2686354), (11, 1953712), (16, 1343177), (22, 976856), (23, 934384), (44, 488428), (46, 467192), (88, 244214), (92, 233596), (176, 122107), (184, 116798), (253, 84944), (368, 58399), (506, 42472), (1012, 21236), (2024, 10618), (4048, 5309)]