21262318

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1367}}^1$

素因数の和:1488

約数の個数: 32

約数和(自身を含む): 40186368

約数和(自身を除く): 18924050

約数列:

[1, 2, 7, 11, 14, 22, 77, 101, 154, 202, 707, 1111, 1367, 1414, 2222, 2734, 7777, 9569, 15037, 15554, 19138, 30074, 105259, 138067, 210518, 276134, 966469, 1518737, 1932938, 3037474, 10631159, 21262318]

約数ペア:

[(1, 21262318), (2, 10631159), (7, 3037474), (11, 1932938), (14, 1518737), (22, 966469), (77, 276134), (101, 210518), (154, 138067), (202, 105259), (707, 30074), (1111, 19138), (1367, 15554), (1414, 15037), (2222, 9569), (2734, 7777)]