17720996

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{541}}^1$

素因数の和:995

約数の個数: 24

約数和(自身を含む): 32780160

約数和(自身を除く): 15059164

約数列:

[1, 2, 4, 19, 38, 76, 431, 541, 862, 1082, 1724, 2164, 8189, 10279, 16378, 20558, 32756, 41116, 233171, 466342, 932684, 4430249, 8860498, 17720996]

約数ペア:

[(1, 17720996), (2, 8860498), (4, 4430249), (19, 932684), (38, 466342), (76, 233171), (431, 41116), (541, 32756), (862, 20558), (1082, 16378), (1724, 10279), (2164, 8189)]