21605936

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{122761}}^1$

素因数の和:122780

約数の個数: 20

約数和(自身を含む): 45667464

約数和(自身を除く): 24061528

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 122761, 245522, 491044, 982088, 1350371, 1964176, 2700742, 5401484, 10802968, 21605936]

約数ペア:

[(1, 21605936), (2, 10802968), (4, 5401484), (8, 2700742), (11, 1964176), (16, 1350371), (22, 982088), (44, 491044), (88, 245522), (176, 122761)]