21388696

素因数分解:

$2^3\times 7^2\times {\mathrm{54563}}^1$

素因数の和:54583

約数の個数: 24

約数和(自身を含む): 46652220

約数和(自身を除く): 25263524

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 54563, 109126, 218252, 381941, 436504, 763882, 1527764, 2673587, 3055528, 5347174, 10694348, 21388696]

約数ペア:

[(1, 21388696), (2, 10694348), (4, 5347174), (7, 3055528), (8, 2673587), (14, 1527764), (28, 763882), (49, 436504), (56, 381941), (98, 218252), (196, 109126), (392, 54563)]