21458284

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{1123}}^1$

素因数の和:1425

約数の個数: 24

約数和(自身を含む): 39937968

約数和(自身を除く): 18479684

約数列:

[1, 2, 4, 17, 34, 68, 281, 562, 1123, 1124, 2246, 4492, 4777, 9554, 19091, 19108, 38182, 76364, 315563, 631126, 1262252, 5364571, 10729142, 21458284]

約数ペア:

[(1, 21458284), (2, 10729142), (4, 5364571), (17, 1262252), (34, 631126), (68, 315563), (281, 76364), (562, 38182), (1123, 19108), (1124, 19091), (2246, 9554), (4492, 4777)]