18509135

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 25090560

約数和(自身を除く): 6581425

約数列:

[1, 5, 19, 23, 43, 95, 115, 197, 215, 437, 817, 985, 989, 2185, 3743, 4085, 4531, 4945, 8471, 18715, 18791, 22655, 42355, 86089, 93955, 160949, 194833, 430445, 804745, 974165, 3701827, 18509135]

約数ペア:

[(1, 18509135), (5, 3701827), (19, 974165), (23, 804745), (43, 430445), (95, 194833), (115, 160949), (197, 93955), (215, 86089), (437, 42355), (817, 22655), (985, 18791), (989, 18715), (2185, 8471), (3743, 4945), (4085, 4531)]