18987934

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{653}}^1$

素因数の和:760

約数の個数: 32

約数和(自身を含む): 34154496

約数和(自身を除く): 15166562

約数列:

[1, 2, 7, 14, 31, 62, 67, 134, 217, 434, 469, 653, 938, 1306, 2077, 4154, 4571, 9142, 14539, 20243, 29078, 40486, 43751, 87502, 141701, 283402, 306257, 612514, 1356281, 2712562, 9493967, 18987934]

約数ペア:

[(1, 18987934), (2, 9493967), (7, 2712562), (14, 1356281), (31, 612514), (62, 306257), (67, 283402), (134, 141701), (217, 87502), (434, 43751), (469, 40486), (653, 29078), (938, 20243), (1306, 14539), (2077, 9142), (4154, 4571)]