19864928

素因数分解:

$2^5\times {\mathrm{569}}^1\times {\mathrm{1091}}^1$

素因数の和:1670

約数の個数: 24

約数和(自身を含む): 39213720

約数和(自身を除く): 19348792

約数列:

[1, 2, 4, 8, 16, 32, 569, 1091, 1138, 2182, 2276, 4364, 4552, 8728, 9104, 17456, 18208, 34912, 620779, 1241558, 2483116, 4966232, 9932464, 19864928]

約数ペア:

[(1, 19864928), (2, 9932464), (4, 4966232), (8, 2483116), (16, 1241558), (32, 620779), (569, 34912), (1091, 18208), (1138, 17456), (2182, 9104), (2276, 8728), (4364, 4552)]