217422855

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{371663}}^1$

素因数の和:371687

約数の個数: 24

約数和(自身を含む): 405857088

約数和(自身を除く): 188434233

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 371663, 1114989, 1858315, 3344967, 4831619, 5574945, 14494857, 16724835, 24158095, 43484571, 72474285, 217422855]

約数ペア:

[(1, 217422855), (3, 72474285), (5, 43484571), (9, 24158095), (13, 16724835), (15, 14494857), (39, 5574945), (45, 4831619), (65, 3344967), (117, 1858315), (195, 1114989), (585, 371663)]