291228255

素因数分解:

$3^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{16139}}^1$

素因数の和:16551

約数の個数: 24

約数和(自身を含む): 506085840

約数和(自身を除く): 214857585

約数列:

[1, 3, 5, 9, 15, 45, 401, 1203, 2005, 3609, 6015, 16139, 18045, 48417, 80695, 145251, 242085, 726255, 6471739, 19415217, 32358695, 58245651, 97076085, 291228255]

約数ペア:

[(1, 291228255), (3, 97076085), (5, 58245651), (9, 32358695), (15, 19415217), (45, 6471739), (401, 726255), (1203, 242085), (2005, 145251), (3609, 80695), (6015, 48417), (16139, 18045)]