19640355

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{11003}}^1$

素因数の和:11035

約数の個数: 32

約数和(自身を含む): 38029824

約数和(自身を除く): 18389469

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 595, 1785, 11003, 33009, 55015, 77021, 165045, 187051, 231063, 385105, 561153, 935255, 1155315, 1309357, 2805765, 3928071, 6546785, 19640355]

約数ペア:

[(1, 19640355), (3, 6546785), (5, 3928071), (7, 2805765), (15, 1309357), (17, 1155315), (21, 935255), (35, 561153), (51, 385105), (85, 231063), (105, 187051), (119, 165045), (255, 77021), (357, 55015), (595, 33009), (1785, 11003)]