15642963

素因数分解:

$3^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{587}}^1$

素因数の和:653

約数の個数: 40

約数和(自身を含む): 27320832

約数和(自身を除く): 11677869

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 81, 141, 189, 329, 423, 567, 587, 987, 1269, 1761, 2961, 3807, 4109, 5283, 8883, 12327, 15849, 26649, 27589, 36981, 47547, 82767, 110943, 193123, 248301, 332829, 579369, 744903, 1738107, 2234709, 5214321, 15642963]

約数ペア:

[(1, 15642963), (3, 5214321), (7, 2234709), (9, 1738107), (21, 744903), (27, 579369), (47, 332829), (63, 248301), (81, 193123), (141, 110943), (189, 82767), (329, 47547), (423, 36981), (567, 27589), (587, 26649), (987, 15849), (1269, 12327), (1761, 8883), (2961, 5283), (3807, 4109)]