21868130

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:458

約数の個数: 32

約数和(自身を含む): 40421376

約数和(自身を除く): 18553246

約数列:

[1, 2, 5, 10, 67, 127, 134, 254, 257, 335, 514, 635, 670, 1270, 1285, 2570, 8509, 17018, 17219, 32639, 34438, 42545, 65278, 85090, 86095, 163195, 172190, 326390, 2186813, 4373626, 10934065, 21868130]

約数ペア:

[(1, 21868130), (2, 10934065), (5, 4373626), (10, 2186813), (67, 326390), (127, 172190), (134, 163195), (254, 86095), (257, 85090), (335, 65278), (514, 42545), (635, 34438), (670, 32639), (1270, 17219), (1285, 17018), (2570, 8509)]