18491305

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 26484480

約数和(自身を除く): 7993175

約数列:

[1, 5, 7, 35, 37, 109, 131, 185, 259, 545, 655, 763, 917, 1295, 3815, 4033, 4585, 4847, 14279, 20165, 24235, 28231, 33929, 71395, 99953, 141155, 169645, 499765, 528323, 2641615, 3698261, 18491305]

約数ペア:

[(1, 18491305), (5, 3698261), (7, 2641615), (35, 528323), (37, 499765), (109, 169645), (131, 141155), (185, 99953), (259, 71395), (545, 33929), (655, 28231), (763, 24235), (917, 20165), (1295, 14279), (3815, 4847), (4033, 4585)]