12681778

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{5471}}^1$

素因数の和:5553

約数の個数: 16

約数和(自身を含む): 20355840

約数和(自身を除く): 7674062

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 5471, 10942, 103949, 207898, 333731, 667462, 6340889, 12681778]

約数ペア:

[(1, 12681778), (2, 6340889), (19, 667462), (38, 333731), (61, 207898), (122, 103949), (1159, 10942), (2318, 5471)]