19154135

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:168

約数の個数: 64

約数和(自身を含む): 31933440

約数和(自身を除く): 12779305

約数列:

[1, 5, 7, 11, 13, 35, 43, 55, 65, 77, 89, 91, 143, 215, 301, 385, 445, 455, 473, 559, 623, 715, 979, 1001, 1157, 1505, 2365, 2795, 3115, 3311, 3827, 3913, 4895, 5005, 5785, 6149, 6853, 8099, 12727, 16555, 19135, 19565, 26789, 30745, 34265, 40495, 42097, 43043, 49751, 63635, 89089, 133945, 210485, 215215, 248755, 294679, 348257, 445445, 547261, 1473395, 1741285, 2736305, 3830827, 19154135]

約数ペア:

[(1, 19154135), (5, 3830827), (7, 2736305), (11, 1741285), (13, 1473395), (35, 547261), (43, 445445), (55, 348257), (65, 294679), (77, 248755), (89, 215215), (91, 210485), (143, 133945), (215, 89089), (301, 63635), (385, 49751), (445, 43043), (455, 42097), (473, 40495), (559, 34265), (623, 30745), (715, 26789), (979, 19565), (1001, 19135), (1157, 16555), (1505, 12727), (2365, 8099), (2795, 6853), (3115, 6149), (3311, 5785), (3827, 5005), (3913, 4895)]