20941920681808

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2063}}^1\times {\mathrm{1928419}}^1$

素因数の和:1930544

約数の個数: 80

約数和(自身を含む): 47381001707520

約数和(自身を除く): 26439081025712

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 94, 112, 188, 329, 376, 658, 752, 1316, 2063, 2632, 4126, 5264, 8252, 14441, 16504, 28882, 33008, 57764, 96961, 115528, 193922, 231056, 387844, 678727, 775688, 1357454, 1551376, 1928419, 2714908, 3856838, 5429816, 7713676, 10859632, 13498933, 15427352, 26997866, 30854704, 53995732, 90635693, 107991464, 181271386, 215982928, 362542772, 634449851, 725085544, 1268899702, 1450171088, 2537799404, 3978328397, 5075598808, 7956656794, 10151197616, 15913313588, 27848298779, 31826627176, 55696597558, 63653254352, 111393195116, 186981434659, 222786390232, 373962869318, 445572780464, 747925738636, 1308870042613, 1495851477272, 2617740085226, 2991702954544, 5235480170452, 10470960340904, 20941920681808]

約数ペア:

[(1, 20941920681808), (2, 10470960340904), (4, 5235480170452), (7, 2991702954544), (8, 2617740085226), (14, 1495851477272), (16, 1308870042613), (28, 747925738636), (47, 445572780464), (56, 373962869318), (94, 222786390232), (112, 186981434659), (188, 111393195116), (329, 63653254352), (376, 55696597558), (658, 31826627176), (752, 27848298779), (1316, 15913313588), (2063, 10151197616), (2632, 7956656794), (4126, 5075598808), (5264, 3978328397), (8252, 2537799404), (14441, 1450171088), (16504, 1268899702), (28882, 725085544), (33008, 634449851), (57764, 362542772), (96961, 215982928), (115528, 181271386), (193922, 107991464), (231056, 90635693), (387844, 53995732), (678727, 30854704), (775688, 26997866), (1357454, 15427352), (1551376, 13498933), (1928419, 10859632), (2714908, 7713676), (3856838, 5429816)]