215511495

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{16883}}^1$

素因数の和:16951

約数の個数: 32

約数和(自身を含む): 369556992

約数和(自身を除く): 154045497

約数列:

[1, 3, 5, 15, 23, 37, 69, 111, 115, 185, 345, 555, 851, 2553, 4255, 12765, 16883, 50649, 84415, 253245, 388309, 624671, 1164927, 1874013, 1941545, 3123355, 5824635, 9370065, 14367433, 43102299, 71837165, 215511495]

約数ペア:

[(1, 215511495), (3, 71837165), (5, 43102299), (15, 14367433), (23, 9370065), (37, 5824635), (69, 3123355), (111, 1941545), (115, 1874013), (185, 1164927), (345, 624671), (555, 388309), (851, 253245), (2553, 84415), (4255, 50649), (12765, 16883)]