157817961

素因数分解:

$3^2\times 7^1\times {\mathrm{401}}^1\times {\mathrm{6247}}^1$

素因数の和:6661

約数の個数: 24

約数和(自身を含む): 261216384

約数和(自身を除く): 103398423

約数列:

[1, 3, 7, 9, 21, 63, 401, 1203, 2807, 3609, 6247, 8421, 18741, 25263, 43729, 56223, 131187, 393561, 2505047, 7515141, 17535329, 22545423, 52605987, 157817961]

約数ペア:

[(1, 157817961), (3, 52605987), (7, 22545423), (9, 17535329), (21, 7515141), (63, 2505047), (401, 393561), (1203, 131187), (2807, 56223), (3609, 43729), (6247, 25263), (8421, 18741)]