19389979

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{1283}}^1$

素因数の和:1434

約数の個数: 16

約数和(自身を含む): 23666688

約数和(自身を除く): 4276709

約数列:

[1, 7, 17, 119, 127, 889, 1283, 2159, 8981, 15113, 21811, 152677, 162941, 1140587, 2769997, 19389979]

約数ペア:

[(1, 19389979), (7, 2769997), (17, 1140587), (119, 162941), (127, 152677), (889, 21811), (1283, 15113), (2159, 8981)]