247485537

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{499}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 402584000

約数和(自身を除く): 155098463

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 157, 243, 351, 471, 499, 1053, 1413, 1497, 2041, 3159, 4239, 4491, 6123, 6487, 12717, 13473, 18369, 19461, 38151, 40419, 55107, 58383, 78343, 121257, 165321, 175149, 235029, 495963, 525447, 705087, 1018459, 1576341, 2115261, 3055377, 6345783, 9166131, 19037349, 27498393, 82495179, 247485537]

約数ペア:

[(1, 247485537), (3, 82495179), (9, 27498393), (13, 19037349), (27, 9166131), (39, 6345783), (81, 3055377), (117, 2115261), (157, 1576341), (243, 1018459), (351, 705087), (471, 525447), (499, 495963), (1053, 235029), (1413, 175149), (1497, 165321), (2041, 121257), (3159, 78343), (4239, 58383), (4491, 55107), (6123, 40419), (6487, 38151), (12717, 19461), (13473, 18369)]