19876168

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{499}}^1$

素因数の和:901

約数の個数: 32

約数和(自身を含む): 40320000

約数和(自身を除く): 20443832

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 383, 499, 766, 998, 1532, 1996, 3064, 3992, 4979, 6487, 9958, 12974, 19916, 25948, 39832, 51896, 191117, 382234, 764468, 1528936, 2484521, 4969042, 9938084, 19876168]

約数ペア:

[(1, 19876168), (2, 9938084), (4, 4969042), (8, 2484521), (13, 1528936), (26, 764468), (52, 382234), (104, 191117), (383, 51896), (499, 39832), (766, 25948), (998, 19916), (1532, 12974), (1996, 9958), (3064, 6487), (3992, 4979)]