159538421

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1721}}^1$

素因数の和:1805

約数の個数: 32

約数和(自身を含む): 208293120

約数和(自身を除く): 48754699

約数列:

[1, 7, 17, 19, 41, 119, 133, 287, 323, 697, 779, 1721, 2261, 4879, 5453, 12047, 13243, 29257, 32699, 70561, 92701, 204799, 228893, 493927, 555883, 1199537, 1340659, 3891181, 8396759, 9384613, 22791203, 159538421]

約数ペア:

[(1, 159538421), (7, 22791203), (17, 9384613), (19, 8396759), (41, 3891181), (119, 1340659), (133, 1199537), (287, 555883), (323, 493927), (697, 228893), (779, 204799), (1721, 92701), (2261, 70561), (4879, 32699), (5453, 29257), (12047, 13243)]