2019574739

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{727}}^1$

素因数の和:857

約数の個数: 40

約数和(自身を含む): 2569301280

約数和(自身を除く): 549726541

約数列:

[1, 7, 13, 49, 89, 91, 343, 623, 637, 727, 1157, 2401, 4361, 4459, 5089, 8099, 9451, 30527, 31213, 35623, 56693, 64703, 66157, 213689, 249361, 396851, 452921, 463099, 841139, 1745527, 2777957, 3170447, 3241693, 5887973, 22193129, 22691851, 41215811, 155351903, 288510677, 2019574739]

約数ペア:

[(1, 2019574739), (7, 288510677), (13, 155351903), (49, 41215811), (89, 22691851), (91, 22193129), (343, 5887973), (623, 3241693), (637, 3170447), (727, 2777957), (1157, 1745527), (2401, 841139), (4361, 463099), (4459, 452921), (5089, 396851), (8099, 249361), (9451, 213689), (30527, 66157), (31213, 64703), (35623, 56693)]