51506685

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7481}}^1$

素因数の和:7515

約数の個数: 40

約数和(自身を含む): 97774776

約数和(自身を除く): 46268091

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 255, 405, 459, 765, 1377, 2295, 6885, 7481, 22443, 37405, 67329, 112215, 127177, 201987, 336645, 381531, 605961, 635885, 1009935, 1144593, 1907655, 3029805, 3433779, 5722965, 10301337, 17168895, 51506685]

約数ペア:

[(1, 51506685), (3, 17168895), (5, 10301337), (9, 5722965), (15, 3433779), (17, 3029805), (27, 1907655), (45, 1144593), (51, 1009935), (81, 635885), (85, 605961), (135, 381531), (153, 336645), (255, 201987), (405, 127177), (459, 112215), (765, 67329), (1377, 37405), (2295, 22443), (6885, 7481)]