21813976

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{143513}}^1$

素因数の和:143538

約数の個数: 16

約数和(自身を含む): 43054200

約数和(自身を除く): 21240224

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 143513, 287026, 574052, 1148104, 2726747, 5453494, 10906988, 21813976]

約数ペア:

[(1, 21813976), (2, 10906988), (4, 5453494), (8, 2726747), (19, 1148104), (38, 574052), (76, 287026), (152, 143513)]