219871897

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:417

約数の個数: 32

約数和(自身を含む): 273030912

約数和(自身を除く): 53159015

約数列:

[1, 7, 17, 83, 113, 119, 197, 581, 791, 1379, 1411, 1921, 3349, 9379, 9877, 13447, 16351, 22261, 23443, 65653, 114457, 155827, 159443, 277967, 378437, 1116101, 1847663, 1945769, 2649059, 12933641, 31410271, 219871897]

約数ペア:

[(1, 219871897), (7, 31410271), (17, 12933641), (83, 2649059), (113, 1945769), (119, 1847663), (197, 1116101), (581, 378437), (791, 277967), (1379, 159443), (1411, 155827), (1921, 114457), (3349, 65653), (9379, 23443), (9877, 22261), (13447, 16351)]