81316515

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{823}}^1\times {\mathrm{941}}^1$

素因数の和:1779

約数の個数: 32

約数和(自身を含む): 149031936

約数和(自身を除く): 67715421

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 823, 941, 2469, 2823, 4115, 4705, 5761, 6587, 12345, 14115, 17283, 19761, 28805, 32935, 86415, 98805, 774443, 2323329, 3872215, 5421101, 11616645, 16263303, 27105505, 81316515]

約数ペア:

[(1, 81316515), (3, 27105505), (5, 16263303), (7, 11616645), (15, 5421101), (21, 3872215), (35, 2323329), (105, 774443), (823, 98805), (941, 86415), (2469, 32935), (2823, 28805), (4115, 19761), (4705, 17283), (5761, 14115), (6587, 12345)]