189128009

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 235892736

約数和(自身を除く): 46764727

約数列:

[1, 7, 17, 53, 119, 157, 191, 371, 901, 1099, 1337, 2669, 3247, 6307, 8321, 10123, 18683, 22729, 29987, 58247, 70861, 141457, 172091, 209909, 509779, 990199, 1204637, 1589311, 3568453, 11125177, 27018287, 189128009]

約数ペア:

[(1, 189128009), (7, 27018287), (17, 11125177), (53, 3568453), (119, 1589311), (157, 1204637), (191, 990199), (371, 509779), (901, 209909), (1099, 172091), (1337, 141457), (2669, 70861), (3247, 58247), (6307, 29987), (8321, 22729), (10123, 18683)]