21660782

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1429}}^1$

素因数の和:1508

約数の個数: 32

約数和(自身を含む): 38918880

約数和(自身を除く): 17258098

約数列:

[1, 2, 11, 13, 22, 26, 53, 106, 143, 286, 583, 689, 1166, 1378, 1429, 2858, 7579, 15158, 15719, 18577, 31438, 37154, 75737, 151474, 204347, 408694, 833107, 984581, 1666214, 1969162, 10830391, 21660782]

約数ペア:

[(1, 21660782), (2, 10830391), (11, 1969162), (13, 1666214), (22, 984581), (26, 833107), (53, 408694), (106, 204347), (143, 151474), (286, 75737), (583, 37154), (689, 31438), (1166, 18577), (1378, 15719), (1429, 15158), (2858, 7579)]