16909218

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:311

約数の個数: 48

約数和(自身を含む): 37806912

約数和(自身を除く): 20897694

約数列:

[1, 2, 3, 6, 9, 18, 71, 101, 131, 142, 202, 213, 262, 303, 393, 426, 606, 639, 786, 909, 1179, 1278, 1818, 2358, 7171, 9301, 13231, 14342, 18602, 21513, 26462, 27903, 39693, 43026, 55806, 64539, 79386, 83709, 119079, 129078, 167418, 238158, 939401, 1878802, 2818203, 5636406, 8454609, 16909218]

約数ペア:

[(1, 16909218), (2, 8454609), (3, 5636406), (6, 2818203), (9, 1878802), (18, 939401), (71, 238158), (101, 167418), (131, 129078), (142, 119079), (202, 83709), (213, 79386), (262, 64539), (303, 55806), (393, 43026), (426, 39693), (606, 27903), (639, 26462), (786, 21513), (909, 18602), (1179, 14342), (1278, 13231), (1818, 9301), (2358, 7171)]