20863845

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9091}}^1$

素因数の和:9122

約数の個数: 32

約数和(自身を含む): 39277440

約数和(自身を除く): 18413595

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 9091, 27273, 45455, 81819, 136365, 154547, 245457, 409095, 463641, 772735, 1227285, 1390923, 2318205, 4172769, 6954615, 20863845]

約数ペア:

[(1, 20863845), (3, 6954615), (5, 4172769), (9, 2318205), (15, 1390923), (17, 1227285), (27, 772735), (45, 463641), (51, 409095), (85, 245457), (135, 154547), (153, 136365), (255, 81819), (459, 45455), (765, 27273), (2295, 9091)]