21661060

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{63709}}^1$

素因数の和:63735

約数の個数: 24

約数和(自身を含む): 48164760

約数和(自身を除く): 26503700

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 63709, 127418, 254836, 318545, 637090, 1083053, 1274180, 2166106, 4332212, 5415265, 10830530, 21661060]

約数ペア:

[(1, 21661060), (2, 10830530), (4, 5415265), (5, 4332212), (10, 2166106), (17, 1274180), (20, 1083053), (34, 637090), (68, 318545), (85, 254836), (170, 127418), (340, 63709)]