2531997

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1$

素因数の和:122

約数の個数: 48

約数和(自身を含む): 4455360

約数和(自身を除く): 1923363

約数列:

[1, 3, 9, 13, 17, 19, 39, 51, 57, 67, 117, 153, 171, 201, 221, 247, 323, 603, 663, 741, 871, 969, 1139, 1273, 1989, 2223, 2613, 2907, 3417, 3819, 4199, 7839, 10251, 11457, 12597, 14807, 16549, 21641, 37791, 44421, 49647, 64923, 133263, 148941, 194769, 281333, 843999, 2531997]

約数ペア:

[(1, 2531997), (3, 843999), (9, 281333), (13, 194769), (17, 148941), (19, 133263), (39, 64923), (51, 49647), (57, 44421), (67, 37791), (117, 21641), (153, 16549), (171, 14807), (201, 12597), (221, 11457), (247, 10251), (323, 7839), (603, 4199), (663, 3819), (741, 3417), (871, 2907), (969, 2613), (1139, 2223), (1273, 1989)]