28447731

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 47523840

約数和(自身を除く): 19076109

約数列:

[1, 3, 9, 13, 19, 39, 57, 67, 117, 171, 191, 201, 247, 573, 603, 741, 871, 1273, 1719, 2223, 2483, 2613, 3629, 3819, 7449, 7839, 10887, 11457, 12797, 16549, 22347, 32661, 38391, 47177, 49647, 115173, 141531, 148941, 166361, 243143, 424593, 499083, 729429, 1497249, 2188287, 3160859, 9482577, 28447731]

約数ペア:

[(1, 28447731), (3, 9482577), (9, 3160859), (13, 2188287), (19, 1497249), (39, 729429), (57, 499083), (67, 424593), (117, 243143), (171, 166361), (191, 148941), (201, 141531), (247, 115173), (573, 49647), (603, 47177), (741, 38391), (871, 32661), (1273, 22347), (1719, 16549), (2223, 12797), (2483, 11457), (2613, 10887), (3629, 7839), (3819, 7449)]