991739231

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{229}}^1\times {\mathrm{727}}^1$

素因数の和:1023

約数の個数: 32

約数和(自身を含む): 1221642240

約数和(自身を除く): 229903009

約数列:

[1, 7, 23, 37, 161, 229, 259, 727, 851, 1603, 5089, 5267, 5957, 8473, 16721, 26899, 36869, 59311, 117047, 166483, 188293, 194879, 618677, 1165381, 1364153, 3829109, 4330739, 6159871, 26803763, 43119097, 141677033, 991739231]

約数ペア:

[(1, 991739231), (7, 141677033), (23, 43119097), (37, 26803763), (161, 6159871), (229, 4330739), (259, 3829109), (727, 1364153), (851, 1165381), (1603, 618677), (5089, 194879), (5267, 188293), (5957, 166483), (8473, 117047), (16721, 59311), (26899, 36869)]