21771390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{42689}}^1$

素因数の和:42716

約数の個数: 32

約数和(自身を含む): 55326240

約数和(自身を除く): 33554850

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510, 42689, 85378, 128067, 213445, 256134, 426890, 640335, 725713, 1280670, 1451426, 2177139, 3628565, 4354278, 7257130, 10885695, 21771390]

約数ペア:

[(1, 21771390), (2, 10885695), (3, 7257130), (5, 4354278), (6, 3628565), (10, 2177139), (15, 1451426), (17, 1280670), (30, 725713), (34, 640335), (51, 426890), (85, 256134), (102, 213445), (170, 128067), (255, 85378), (510, 42689)]