20216928207

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{16651}}^1$

素因数の和:16876

約数の個数: 64

約数和(自身を含む): 34529587200

約数和(自身を除く): 14312658993

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 119, 133, 179, 323, 357, 399, 537, 969, 1253, 2261, 3043, 3401, 3759, 6783, 9129, 10203, 16651, 21301, 23807, 49953, 57817, 63903, 71421, 116557, 173451, 283067, 316369, 349671, 404719, 849201, 949107, 1214157, 1981469, 2214583, 2980529, 5378273, 5944407, 6643749, 8941587, 16134819, 20863703, 37647911, 50668993, 56630051, 62591109, 112943733, 152006979, 169890153, 354682951, 396410357, 962710867, 1064048853, 1189231071, 2888132601, 6738976069, 20216928207]

約数ペア:

[(1, 20216928207), (3, 6738976069), (7, 2888132601), (17, 1189231071), (19, 1064048853), (21, 962710867), (51, 396410357), (57, 354682951), (119, 169890153), (133, 152006979), (179, 112943733), (323, 62591109), (357, 56630051), (399, 50668993), (537, 37647911), (969, 20863703), (1253, 16134819), (2261, 8941587), (3043, 6643749), (3401, 5944407), (3759, 5378273), (6783, 2980529), (9129, 2214583), (10203, 1981469), (16651, 1214157), (21301, 949107), (23807, 849201), (49953, 404719), (57817, 349671), (63903, 316369), (71421, 283067), (116557, 173451)]