81223569

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{419}}^1$

素因数の和:630

約数の個数: 48

約数和(自身を含む): 143095680

約数和(自身を除く): 61872111

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 181, 357, 419, 543, 1071, 1257, 1267, 1629, 2933, 3077, 3771, 3801, 7123, 8799, 9231, 11403, 21369, 21539, 26397, 27693, 49861, 64107, 64617, 75839, 149583, 193851, 227517, 448749, 530873, 682551, 1289263, 1592619, 3867789, 4777857, 9024841, 11603367, 27074523, 81223569]

約数ペア:

[(1, 81223569), (3, 27074523), (7, 11603367), (9, 9024841), (17, 4777857), (21, 3867789), (51, 1592619), (63, 1289263), (119, 682551), (153, 530873), (181, 448749), (357, 227517), (419, 193851), (543, 149583), (1071, 75839), (1257, 64617), (1267, 64107), (1629, 49861), (2933, 27693), (3077, 26397), (3771, 21539), (3801, 21369), (7123, 11403), (8799, 9231)]