21798738

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4903}}^1$

素因数の和:4943

約数の個数: 48

約数和(自身を含む): 53551680

約数和(自身を除く): 31752942

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 38, 39, 57, 78, 114, 117, 171, 234, 247, 342, 494, 741, 1482, 2223, 4446, 4903, 9806, 14709, 29418, 44127, 63739, 88254, 93157, 127478, 186314, 191217, 279471, 382434, 558942, 573651, 838413, 1147302, 1211041, 1676826, 2422082, 3633123, 7266246, 10899369, 21798738]

約数ペア:

[(1, 21798738), (2, 10899369), (3, 7266246), (6, 3633123), (9, 2422082), (13, 1676826), (18, 1211041), (19, 1147302), (26, 838413), (38, 573651), (39, 558942), (57, 382434), (78, 279471), (114, 191217), (117, 186314), (171, 127478), (234, 93157), (247, 88254), (342, 63739), (494, 44127), (741, 29418), (1482, 14709), (2223, 9806), (4446, 4903)]