16909715

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:227

約数の個数: 32

約数和(自身を含む): 22809600

約数和(自身を除く): 5899885

約数列:

[1, 5, 19, 23, 71, 95, 109, 115, 355, 437, 545, 1349, 1633, 2071, 2185, 2507, 6745, 7739, 8165, 10355, 12535, 31027, 38695, 47633, 147041, 155135, 177997, 238165, 735205, 889985, 3381943, 16909715]

約数ペア:

[(1, 16909715), (5, 3381943), (19, 889985), (23, 735205), (71, 238165), (95, 177997), (109, 155135), (115, 147041), (355, 47633), (437, 38695), (545, 31027), (1349, 12535), (1633, 10355), (2071, 8165), (2185, 7739), (2507, 6745)]