21931377

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1741}}^1$

素因数の和:1793

約数の個数: 32

約数和(自身を含む): 35118720

約数和(自身を除く): 13187343

約数列:

[1, 3, 13, 17, 19, 39, 51, 57, 221, 247, 323, 663, 741, 969, 1741, 4199, 5223, 12597, 22633, 29597, 33079, 67899, 88791, 99237, 384761, 430027, 562343, 1154283, 1290081, 1687029, 7310459, 21931377]

約数ペア:

[(1, 21931377), (3, 7310459), (13, 1687029), (17, 1290081), (19, 1154283), (39, 562343), (51, 430027), (57, 384761), (221, 99237), (247, 88791), (323, 67899), (663, 33079), (741, 29597), (969, 22633), (1741, 12597), (4199, 5223)]