18949970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{11213}}^1$

素因数の和:11246

約数の個数: 24

約数和(自身を含む): 36938916

約数和(自身を除く): 17988946

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 11213, 22426, 56065, 112130, 145769, 291538, 728845, 1457690, 1894997, 3789994, 9474985, 18949970]

約数ペア:

[(1, 18949970), (2, 9474985), (5, 3789994), (10, 1894997), (13, 1457690), (26, 728845), (65, 291538), (130, 145769), (169, 112130), (338, 56065), (845, 22426), (1690, 11213)]