19927775

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4951}}^1$

素因数の和:4991

約数の個数: 24

約数和(自身を含む): 29474304

約数和(自身を除く): 9546529

約数列:

[1, 5, 7, 23, 25, 35, 115, 161, 175, 575, 805, 4025, 4951, 24755, 34657, 113873, 123775, 173285, 569365, 797111, 866425, 2846825, 3985555, 19927775]

約数ペア:

[(1, 19927775), (5, 3985555), (7, 2846825), (23, 866425), (25, 797111), (35, 569365), (115, 173285), (161, 123775), (175, 113873), (575, 34657), (805, 24755), (4025, 4951)]