21934420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{64513}}^1$

素因数の和:64539

約数の個数: 24

約数和(自身を含む): 48772584

約数和(自身を除く): 26838164

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 64513, 129026, 258052, 322565, 645130, 1096721, 1290260, 2193442, 4386884, 5483605, 10967210, 21934420]

約数ペア:

[(1, 21934420), (2, 10967210), (4, 5483605), (5, 4386884), (10, 2193442), (17, 1290260), (20, 1096721), (34, 645130), (68, 322565), (85, 258052), (170, 129026), (340, 64513)]