21377433

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{179}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 36771840

約数和(自身を除く): 15394407

約数列:

[1, 3, 7, 11, 21, 33, 47, 77, 121, 141, 179, 231, 329, 363, 517, 537, 847, 987, 1253, 1551, 1969, 2541, 3619, 3759, 5687, 5907, 8413, 10857, 13783, 17061, 21659, 25239, 39809, 41349, 58891, 64977, 92543, 119427, 151613, 176673, 277629, 454839, 647801, 1017973, 1943403, 3053919, 7125811, 21377433]

約数ペア:

[(1, 21377433), (3, 7125811), (7, 3053919), (11, 1943403), (21, 1017973), (33, 647801), (47, 454839), (77, 277629), (121, 176673), (141, 151613), (179, 119427), (231, 92543), (329, 64977), (363, 58891), (517, 41349), (537, 39809), (847, 25239), (987, 21659), (1253, 17061), (1551, 13783), (1969, 10857), (2541, 8413), (3619, 5907), (3759, 5687)]