20870478

素因数分解:

$2^1\times 3^2\times {\mathrm{103}}^1\times {\mathrm{11257}}^1$

素因数の和:11368

約数の個数: 24

約数和(自身を含む): 45662448

約数和(自身を除く): 24791970

約数列:

[1, 2, 3, 6, 9, 18, 103, 206, 309, 618, 927, 1854, 11257, 22514, 33771, 67542, 101313, 202626, 1159471, 2318942, 3478413, 6956826, 10435239, 20870478]

約数ペア:

[(1, 20870478), (2, 10435239), (3, 6956826), (6, 3478413), (9, 2318942), (18, 1159471), (103, 202626), (206, 101313), (309, 67542), (618, 33771), (927, 22514), (1854, 11257)]