21601220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{63533}}^1$

素因数の和:63559

約数の個数: 24

約数和(自身を含む): 48031704

約数和(自身を除く): 26430484

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 63533, 127066, 254132, 317665, 635330, 1080061, 1270660, 2160122, 4320244, 5400305, 10800610, 21601220]

約数ペア:

[(1, 21601220), (2, 10800610), (4, 5400305), (5, 4320244), (10, 2160122), (17, 1270660), (20, 1080061), (34, 635330), (68, 317665), (85, 254132), (170, 127066), (340, 63533)]