21078603

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{373}}^1$

素因数の和:425

約数の個数: 64

約数和(自身を含む): 40212480

約数和(自身を除く): 19133877

約数列:

[1, 3, 7, 9, 13, 21, 23, 27, 39, 63, 69, 91, 117, 161, 189, 207, 273, 299, 351, 373, 483, 621, 819, 897, 1119, 1449, 2093, 2457, 2611, 2691, 3357, 4347, 4849, 6279, 7833, 8073, 8579, 10071, 14547, 18837, 23499, 25737, 33943, 43641, 56511, 60053, 70497, 77211, 101829, 111527, 130923, 180159, 231633, 305487, 334581, 540477, 780689, 916461, 1003743, 1621431, 2342067, 3011229, 7026201, 21078603]

約数ペア:

[(1, 21078603), (3, 7026201), (7, 3011229), (9, 2342067), (13, 1621431), (21, 1003743), (23, 916461), (27, 780689), (39, 540477), (63, 334581), (69, 305487), (91, 231633), (117, 180159), (161, 130923), (189, 111527), (207, 101829), (273, 77211), (299, 70497), (351, 60053), (373, 56511), (483, 43641), (621, 33943), (819, 25737), (897, 23499), (1119, 18837), (1449, 14547), (2093, 10071), (2457, 8579), (2611, 8073), (2691, 7833), (3357, 6279), (4347, 4849)]