217831523

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7411}}^1$

素因数の和:7467

約数の個数: 32

約数和(自身を含む): 298851840

約数和(自身を除く): 81020317

約数列:

[1, 7, 13, 17, 19, 91, 119, 133, 221, 247, 323, 1547, 1729, 2261, 4199, 7411, 29393, 51877, 96343, 125987, 140809, 674401, 881909, 985663, 1637831, 1830517, 2393753, 11464817, 12813619, 16756271, 31118789, 217831523]

約数ペア:

[(1, 217831523), (7, 31118789), (13, 16756271), (17, 12813619), (19, 11464817), (91, 2393753), (119, 1830517), (133, 1637831), (221, 985663), (247, 881909), (323, 674401), (1547, 140809), (1729, 125987), (2261, 96343), (4199, 51877), (7411, 29393)]