8380503

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{659}}^1$

素因数の和:828

約数の個数: 20

約数和(自身を含む): 12617880

約数和(自身を除く): 4237377

約数列:

[1, 3, 9, 27, 81, 157, 471, 659, 1413, 1977, 4239, 5931, 12717, 17793, 53379, 103463, 310389, 931167, 2793501, 8380503]

約数ペア:

[(1, 8380503), (3, 2793501), (9, 931167), (27, 310389), (81, 103463), (157, 53379), (471, 17793), (659, 12717), (1413, 5931), (1977, 4239)]