19060405

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{257}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 28433664

約数和(自身を除く): 9373259

約数列:

[1, 5, 7, 13, 35, 65, 91, 163, 257, 455, 815, 1141, 1285, 1799, 2119, 3341, 5705, 8995, 10595, 14833, 16705, 23387, 41891, 74165, 116935, 209455, 293237, 544583, 1466185, 2722915, 3812081, 19060405]

約数ペア:

[(1, 19060405), (5, 3812081), (7, 2722915), (13, 1466185), (35, 544583), (65, 293237), (91, 209455), (163, 116935), (257, 74165), (455, 41891), (815, 23387), (1141, 16705), (1285, 14833), (1799, 10595), (2119, 8995), (3341, 5705)]