21786435

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{863}}^1$

素因数の和:905

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 23003325

約数列:

[1, 3, 5, 9, 11, 15, 17, 27, 33, 45, 51, 55, 85, 99, 135, 153, 165, 187, 255, 297, 459, 495, 561, 765, 863, 935, 1485, 1683, 2295, 2589, 2805, 4315, 5049, 7767, 8415, 9493, 12945, 14671, 23301, 25245, 28479, 38835, 44013, 47465, 73355, 85437, 116505, 132039, 142395, 161381, 220065, 256311, 396117, 427185, 484143, 660195, 806905, 1281555, 1452429, 1980585, 2420715, 4357287, 7262145, 21786435]

約数ペア:

[(1, 21786435), (3, 7262145), (5, 4357287), (9, 2420715), (11, 1980585), (15, 1452429), (17, 1281555), (27, 806905), (33, 660195), (45, 484143), (51, 427185), (55, 396117), (85, 256311), (99, 220065), (135, 161381), (153, 142395), (165, 132039), (187, 116505), (255, 85437), (297, 73355), (459, 47465), (495, 44013), (561, 38835), (765, 28479), (863, 25245), (935, 23301), (1485, 14671), (1683, 12945), (2295, 9493), (2589, 8415), (2805, 7767), (4315, 5049)]