72867837

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1\times {\mathrm{491}}^1$

素因数の和:729

約数の個数: 32

約数和(自身を含む): 114868224

約数和(自身を除く): 42000387

約数列:

[1, 3, 7, 21, 37, 111, 191, 259, 491, 573, 777, 1337, 1473, 3437, 4011, 7067, 10311, 18167, 21201, 49469, 54501, 93781, 127169, 148407, 281343, 381507, 656467, 1969401, 3469897, 10409691, 24289279, 72867837]

約数ペア:

[(1, 72867837), (3, 24289279), (7, 10409691), (21, 3469897), (37, 1969401), (111, 656467), (191, 381507), (259, 281343), (491, 148407), (573, 127169), (777, 93781), (1337, 54501), (1473, 49469), (3437, 21201), (4011, 18167), (7067, 10311)]