20674365

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{257}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 34477056

約数和(自身を除く): 13802691

約数列:

[1, 3, 5, 15, 31, 93, 155, 173, 257, 465, 519, 771, 865, 1285, 2595, 3855, 5363, 7967, 16089, 23901, 26815, 39835, 44461, 80445, 119505, 133383, 222305, 666915, 1378291, 4134873, 6891455, 20674365]

約数ペア:

[(1, 20674365), (3, 6891455), (5, 4134873), (15, 1378291), (31, 666915), (93, 222305), (155, 133383), (173, 119505), (257, 80445), (465, 44461), (519, 39835), (771, 26815), (865, 23901), (1285, 16089), (2595, 7967), (3855, 5363)]