21321538

素因数分解:

$2^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{311}}^1$

素因数の和:462

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 16417982

約数列:

[1, 2, 7, 14, 59, 83, 118, 166, 311, 413, 581, 622, 826, 1162, 2177, 4354, 4897, 9794, 18349, 25813, 34279, 36698, 51626, 68558, 128443, 180691, 256886, 361382, 1522967, 3045934, 10660769, 21321538]

約数ペア:

[(1, 21321538), (2, 10660769), (7, 3045934), (14, 1522967), (59, 361382), (83, 256886), (118, 180691), (166, 128443), (311, 68558), (413, 51626), (581, 36698), (622, 34279), (826, 25813), (1162, 18349), (2177, 9794), (4354, 4897)]