51381837

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 88704000

約数和(自身を除く): 37322163

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 79, 109, 117, 153, 221, 237, 327, 351, 459, 663, 711, 981, 1027, 1343, 1417, 1853, 1989, 2133, 2943, 3081, 4029, 4251, 5559, 5967, 8611, 9243, 12087, 12753, 16677, 17459, 24089, 25833, 27729, 36261, 38259, 50031, 52377, 72267, 77499, 111943, 146387, 157131, 216801, 232497, 335829, 439161, 471393, 650403, 1007487, 1317483, 1903031, 3022461, 3952449, 5709093, 17127279, 51381837]

約数ペア:

[(1, 51381837), (3, 17127279), (9, 5709093), (13, 3952449), (17, 3022461), (27, 1903031), (39, 1317483), (51, 1007487), (79, 650403), (109, 471393), (117, 439161), (153, 335829), (221, 232497), (237, 216801), (327, 157131), (351, 146387), (459, 111943), (663, 77499), (711, 72267), (981, 52377), (1027, 50031), (1343, 38259), (1417, 36261), (1853, 27729), (1989, 25833), (2133, 24089), (2943, 17459), (3081, 16677), (4029, 12753), (4251, 12087), (5559, 9243), (5967, 8611)]