18887408

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{69439}}^1$

素因数の和:69464

約数の個数: 20

約数和(自身を含む): 38747520

約数和(自身を除く): 19860112

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 69439, 138878, 277756, 555512, 1111024, 1180463, 2360926, 4721852, 9443704, 18887408]

約数ペア:

[(1, 18887408), (2, 9443704), (4, 4721852), (8, 2360926), (16, 1180463), (17, 1111024), (34, 555512), (68, 277756), (136, 138878), (272, 69439)]