21121936

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{120011}}^1$

素因数の和:120030

約数の個数: 20

約数和(自身を含む): 44644464

約数和(自身を除く): 23522528

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 120011, 240022, 480044, 960088, 1320121, 1920176, 2640242, 5280484, 10560968, 21121936]

約数ペア:

[(1, 21121936), (2, 10560968), (4, 5280484), (8, 2640242), (11, 1920176), (16, 1320121), (22, 960088), (44, 480044), (88, 240022), (176, 120011)]