21051012

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{727}}^1$

素因数の和:880

約数の個数: 48

約数和(自身を含む): 52183040

約数和(自身を除く): 31132028

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 127, 228, 254, 381, 508, 727, 762, 1454, 1524, 2181, 2413, 2908, 4362, 4826, 7239, 8724, 9652, 13813, 14478, 27626, 28956, 41439, 55252, 82878, 92329, 165756, 184658, 276987, 369316, 553974, 1107948, 1754251, 3508502, 5262753, 7017004, 10525506, 21051012]

約数ペア:

[(1, 21051012), (2, 10525506), (3, 7017004), (4, 5262753), (6, 3508502), (12, 1754251), (19, 1107948), (38, 553974), (57, 369316), (76, 276987), (114, 184658), (127, 165756), (228, 92329), (254, 82878), (381, 55252), (508, 41439), (727, 28956), (762, 27626), (1454, 14478), (1524, 13813), (2181, 9652), (2413, 8724), (2908, 7239), (4362, 4826)]