19651653

素因数分解:

$3^6\times 7^1\times {\mathrm{3851}}^1$

素因数の和:3876

約数の個数: 28

約数和(自身を含む): 33681888

約数和(自身を除く): 14030235

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 3851, 5103, 11553, 26957, 34659, 80871, 103977, 242613, 311931, 727839, 935793, 2183517, 2807379, 6550551, 19651653]

約数ペア:

[(1, 19651653), (3, 6550551), (7, 2807379), (9, 2183517), (21, 935793), (27, 727839), (63, 311931), (81, 242613), (189, 103977), (243, 80871), (567, 34659), (729, 26957), (1701, 11553), (3851, 5103)]