28745613

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 48018880

約数和(自身を除く): 19273267

約数列:

[1, 3, 9, 13, 19, 39, 57, 67, 117, 171, 193, 201, 247, 579, 603, 741, 871, 1273, 1737, 2223, 2509, 2613, 3667, 3819, 7527, 7839, 11001, 11457, 12931, 16549, 22581, 33003, 38793, 47671, 49647, 116379, 143013, 148941, 168103, 245689, 429039, 504309, 737067, 1512927, 2211201, 3193957, 9581871, 28745613]

約数ペア:

[(1, 28745613), (3, 9581871), (9, 3193957), (13, 2211201), (19, 1512927), (39, 737067), (57, 504309), (67, 429039), (117, 245689), (171, 168103), (193, 148941), (201, 143013), (247, 116379), (579, 49647), (603, 47671), (741, 38793), (871, 33003), (1273, 22581), (1737, 16549), (2223, 12931), (2509, 11457), (2613, 11001), (3667, 7839), (3819, 7527)]