18661356

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:244

約数の個数: 108

約数和(自身を含む): 56019600

約数和(自身を除く): 37358244

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 71, 84, 98, 126, 142, 147, 149, 196, 213, 252, 284, 294, 298, 426, 441, 447, 497, 588, 596, 639, 852, 882, 894, 994, 1043, 1278, 1341, 1491, 1764, 1788, 1988, 2086, 2556, 2682, 2982, 3129, 3479, 4172, 4473, 5364, 5964, 6258, 6958, 7301, 8946, 9387, 10437, 10579, 12516, 13916, 14602, 17892, 18774, 20874, 21158, 21903, 29204, 31311, 31737, 37548, 41748, 42316, 43806, 62622, 63474, 65709, 74053, 87612, 95211, 125244, 126948, 131418, 148106, 190422, 222159, 262836, 296212, 380844, 444318, 518371, 666477, 888636, 1036742, 1332954, 1555113, 2073484, 2665908, 3110226, 4665339, 6220452, 9330678, 18661356]

約数ペア:

[(1, 18661356), (2, 9330678), (3, 6220452), (4, 4665339), (6, 3110226), (7, 2665908), (9, 2073484), (12, 1555113), (14, 1332954), (18, 1036742), (21, 888636), (28, 666477), (36, 518371), (42, 444318), (49, 380844), (63, 296212), (71, 262836), (84, 222159), (98, 190422), (126, 148106), (142, 131418), (147, 126948), (149, 125244), (196, 95211), (213, 87612), (252, 74053), (284, 65709), (294, 63474), (298, 62622), (426, 43806), (441, 42316), (447, 41748), (497, 37548), (588, 31737), (596, 31311), (639, 29204), (852, 21903), (882, 21158), (894, 20874), (994, 18774), (1043, 17892), (1278, 14602), (1341, 13916), (1491, 12516), (1764, 10579), (1788, 10437), (1988, 9387), (2086, 8946), (2556, 7301), (2682, 6958), (2982, 6258), (3129, 5964), (3479, 5364), (4172, 4473)]