19709584

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{13841}}^1$

素因数の和:13938

約数の個数: 20

約数和(自身を含む): 38619180

約数和(自身を除く): 18909596

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 13841, 27682, 55364, 110728, 221456, 1231849, 2463698, 4927396, 9854792, 19709584]

約数ペア:

[(1, 19709584), (2, 9854792), (4, 4927396), (8, 2463698), (16, 1231849), (89, 221456), (178, 110728), (356, 55364), (712, 27682), (1424, 13841)]