18978210

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{210869}}^1$

素因数の和:210882

約数の個数: 24

約数和(自身を含む): 49343580

約数和(自身を除く): 30365370

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 210869, 421738, 632607, 1054345, 1265214, 1897821, 2108690, 3163035, 3795642, 6326070, 9489105, 18978210]

約数ペア:

[(1, 18978210), (2, 9489105), (3, 6326070), (5, 3795642), (6, 3163035), (9, 2108690), (10, 1897821), (15, 1265214), (18, 1054345), (30, 632607), (45, 421738), (90, 210869)]