18010818

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{641}}^1$

素因数の和:879

約数の個数: 48

約数和(自身を含む): 44868096

約数和(自身を除く): 26857278

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 223, 446, 641, 669, 1282, 1338, 1561, 1923, 2007, 3122, 3846, 4014, 4487, 4683, 5769, 8974, 9366, 11538, 13461, 14049, 26922, 28098, 40383, 80766, 142943, 285886, 428829, 857658, 1000601, 1286487, 2001202, 2572974, 3001803, 6003606, 9005409, 18010818]

約数ペア:

[(1, 18010818), (2, 9005409), (3, 6003606), (6, 3001803), (7, 2572974), (9, 2001202), (14, 1286487), (18, 1000601), (21, 857658), (42, 428829), (63, 285886), (126, 142943), (223, 80766), (446, 40383), (641, 28098), (669, 26922), (1282, 14049), (1338, 13461), (1561, 11538), (1923, 9366), (2007, 8974), (3122, 5769), (3846, 4683), (4014, 4487)]