21321738

素因数分解:

$2^1\times 3^3\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{271}}^1$

素因数の和:360

約数の個数: 64

約数和(自身を含む): 50135040

約数和(自身を除く): 28813302

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 47, 54, 62, 93, 94, 141, 186, 271, 279, 282, 423, 542, 558, 813, 837, 846, 1269, 1457, 1626, 1674, 2439, 2538, 2914, 4371, 4878, 7317, 8401, 8742, 12737, 13113, 14634, 16802, 25203, 25474, 26226, 38211, 39339, 50406, 75609, 76422, 78678, 114633, 151218, 226827, 229266, 343899, 394847, 453654, 687798, 789694, 1184541, 2369082, 3553623, 7107246, 10660869, 21321738]

約数ペア:

[(1, 21321738), (2, 10660869), (3, 7107246), (6, 3553623), (9, 2369082), (18, 1184541), (27, 789694), (31, 687798), (47, 453654), (54, 394847), (62, 343899), (93, 229266), (94, 226827), (141, 151218), (186, 114633), (271, 78678), (279, 76422), (282, 75609), (423, 50406), (542, 39339), (558, 38211), (813, 26226), (837, 25474), (846, 25203), (1269, 16802), (1457, 14634), (1626, 13113), (1674, 12737), (2439, 8742), (2538, 8401), (2914, 7317), (4371, 4878)]