215976315

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{8167}}^1$

素因数の和:8259

約数の個数: 32

約数和(自身を含む): 362267136

約数和(自身を除く): 146290821

約数列:

[1, 3, 5, 15, 41, 43, 123, 129, 205, 215, 615, 645, 1763, 5289, 8167, 8815, 24501, 26445, 40835, 122505, 334847, 351181, 1004541, 1053543, 1674235, 1755905, 5022705, 5267715, 14398421, 43195263, 71992105, 215976315]

約数ペア:

[(1, 215976315), (3, 71992105), (5, 43195263), (15, 14398421), (41, 5267715), (43, 5022705), (123, 1755905), (129, 1674235), (205, 1053543), (215, 1004541), (615, 351181), (645, 334847), (1763, 122505), (5289, 40835), (8167, 26445), (8815, 24501)]