18550245

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:226

約数の個数: 64

約数和(自身を含む): 36126720

約数和(自身を除く): 17576475

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 41, 93, 105, 123, 139, 155, 205, 217, 287, 417, 465, 615, 651, 695, 861, 973, 1085, 1271, 1435, 2085, 2919, 3255, 3813, 4305, 4309, 4865, 5699, 6355, 8897, 12927, 14595, 17097, 19065, 21545, 26691, 28495, 30163, 39893, 44485, 64635, 85485, 90489, 119679, 133455, 150815, 176669, 199465, 452445, 530007, 598395, 883345, 1236683, 2650035, 3710049, 6183415, 18550245]

約数ペア:

[(1, 18550245), (3, 6183415), (5, 3710049), (7, 2650035), (15, 1236683), (21, 883345), (31, 598395), (35, 530007), (41, 452445), (93, 199465), (105, 176669), (123, 150815), (139, 133455), (155, 119679), (205, 90489), (217, 85485), (287, 64635), (417, 44485), (465, 39893), (615, 30163), (651, 28495), (695, 26691), (861, 21545), (973, 19065), (1085, 17097), (1271, 14595), (1435, 12927), (2085, 8897), (2919, 6355), (3255, 5699), (3813, 4865), (4305, 4309)]