19808176

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{12763}}^1$

素因数の和:12868

約数の個数: 20

約数和(自身を含む): 38777032

約数和(自身を除く): 18968856

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 776, 1552, 12763, 25526, 51052, 102104, 204208, 1238011, 2476022, 4952044, 9904088, 19808176]

約数ペア:

[(1, 19808176), (2, 9904088), (4, 4952044), (8, 2476022), (16, 1238011), (97, 204208), (194, 102104), (388, 51052), (776, 25526), (1552, 12763)]