18712684

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{167}}^1\times {\mathrm{257}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 33374880

約数和(自身を除く): 14662196

約数列:

[1, 2, 4, 109, 167, 218, 257, 334, 436, 514, 668, 1028, 18203, 28013, 36406, 42919, 56026, 72812, 85838, 112052, 171676, 4678171, 9356342, 18712684]

約数ペア:

[(1, 18712684), (2, 9356342), (4, 4678171), (109, 171676), (167, 112052), (218, 85838), (257, 72812), (334, 56026), (436, 42919), (514, 36406), (668, 28013), (1028, 18203)]