215210517

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{599}}^1$

素因数の和:793

約数の個数: 32

約数和(自身を含む): 309657600

約数和(自身を除く): 94447083

約数列:

[1, 3, 23, 41, 69, 123, 127, 381, 599, 943, 1797, 2829, 2921, 5207, 8763, 13777, 15621, 24559, 41331, 73677, 76073, 119761, 228219, 359283, 564857, 1694571, 1749679, 3118993, 5249037, 9356979, 71736839, 215210517]

約数ペア:

[(1, 215210517), (3, 71736839), (23, 9356979), (41, 5249037), (69, 3118993), (123, 1749679), (127, 1694571), (381, 564857), (599, 359283), (943, 228219), (1797, 119761), (2829, 76073), (2921, 73677), (5207, 41331), (8763, 24559), (13777, 15621)]