19906305

素因数分解:

$3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{271}}^1$

素因数の和:421

約数の個数: 32

約数和(自身を含む): 32901120

約数和(自身を除く): 12994815

約数列:

[1, 3, 5, 15, 59, 83, 177, 249, 271, 295, 415, 813, 885, 1245, 1355, 4065, 4897, 14691, 15989, 22493, 24485, 47967, 67479, 73455, 79945, 112465, 239835, 337395, 1327087, 3981261, 6635435, 19906305]

約数ペア:

[(1, 19906305), (3, 6635435), (5, 3981261), (15, 1327087), (59, 337395), (83, 239835), (177, 112465), (249, 79945), (271, 73455), (295, 67479), (415, 47967), (813, 24485), (885, 22493), (1245, 15989), (1355, 14691), (4065, 4897)]