19774797

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{359}}^1$

素因数の和:473

約数の個数: 32

約数和(自身を含む): 31426560

約数和(自身を除く): 11651763

約数列:

[1, 3, 7, 21, 43, 61, 129, 183, 301, 359, 427, 903, 1077, 1281, 2513, 2623, 7539, 7869, 15437, 18361, 21899, 46311, 55083, 65697, 108059, 153293, 324177, 459879, 941657, 2824971, 6591599, 19774797]

約数ペア:

[(1, 19774797), (3, 6591599), (7, 2824971), (21, 941657), (43, 459879), (61, 324177), (129, 153293), (183, 108059), (301, 65697), (359, 55083), (427, 46311), (903, 21899), (1077, 18361), (1281, 15437), (2513, 7869), (2623, 7539)]