27991548

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19937}}^1$

素因数の和:19963

約数の個数: 48

約数和(自身を含む): 78156960

約数和(自身を除く): 50165412

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 234, 351, 468, 702, 1404, 19937, 39874, 59811, 79748, 119622, 179433, 239244, 259181, 358866, 518362, 538299, 717732, 777543, 1036724, 1076598, 1555086, 2153196, 2332629, 3110172, 4665258, 6997887, 9330516, 13995774, 27991548]

約数ペア:

[(1, 27991548), (2, 13995774), (3, 9330516), (4, 6997887), (6, 4665258), (9, 3110172), (12, 2332629), (13, 2153196), (18, 1555086), (26, 1076598), (27, 1036724), (36, 777543), (39, 717732), (52, 538299), (54, 518362), (78, 358866), (108, 259181), (117, 239244), (156, 179433), (234, 119622), (351, 79748), (468, 59811), (702, 39874), (1404, 19937)]