20158787

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:203

約数の個数: 32

約数和(自身を含む): 25090560

約数和(自身を除く): 4931773

約数列:

[1, 11, 17, 23, 43, 109, 187, 253, 391, 473, 731, 989, 1199, 1853, 2507, 4301, 4687, 8041, 10879, 16813, 20383, 27577, 42619, 51557, 79679, 107801, 184943, 468809, 876469, 1185811, 1832617, 20158787]

約数ペア:

[(1, 20158787), (11, 1832617), (17, 1185811), (23, 876469), (43, 468809), (109, 184943), (187, 107801), (253, 79679), (391, 51557), (473, 42619), (731, 27577), (989, 20383), (1199, 16813), (1853, 10879), (2507, 8041), (4301, 4687)]