28181685

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1123}}^1$

素因数の和:1377

約数の個数: 32

約数和(自身を含む): 51793920

約数和(自身を除く): 23612235

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 239, 717, 1123, 1195, 1673, 3369, 3585, 5019, 5615, 7861, 8365, 16845, 23583, 25095, 39305, 117915, 268397, 805191, 1341985, 1878779, 4025955, 5636337, 9393895, 28181685]

約数ペア:

[(1, 28181685), (3, 9393895), (5, 5636337), (7, 4025955), (15, 1878779), (21, 1341985), (35, 805191), (105, 268397), (239, 117915), (717, 39305), (1123, 25095), (1195, 23583), (1673, 16845), (3369, 8365), (3585, 7861), (5019, 5615)]