19978088

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{192097}}^1$

素因数の和:192116

約数の個数: 16

約数和(自身を含む): 40340580

約数和(自身を除く): 20362492

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 192097, 384194, 768388, 1536776, 2497261, 4994522, 9989044, 19978088]

約数ペア:

[(1, 19978088), (2, 9989044), (4, 4994522), (8, 2497261), (13, 1536776), (26, 768388), (52, 384194), (104, 192097)]