21800392

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{1021}}^1$

素因数の和:1201

約数の個数: 32

約数和(自身を含む): 43598520

約数和(自身を除く): 21798128

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 157, 314, 628, 1021, 1256, 2042, 2669, 4084, 5338, 8168, 10676, 17357, 21352, 34714, 69428, 138856, 160297, 320594, 641188, 1282376, 2725049, 5450098, 10900196, 21800392]

約数ペア:

[(1, 21800392), (2, 10900196), (4, 5450098), (8, 2725049), (17, 1282376), (34, 641188), (68, 320594), (136, 160297), (157, 138856), (314, 69428), (628, 34714), (1021, 21352), (1256, 17357), (2042, 10676), (2669, 8168), (4084, 5338)]