21428099

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 28311552

約数和(自身を除く): 6883453

約数列:

[1, 7, 11, 31, 47, 77, 191, 217, 329, 341, 517, 1337, 1457, 2101, 2387, 3619, 5921, 8977, 10199, 14707, 16027, 41447, 62839, 65131, 98747, 112189, 278287, 455917, 691229, 1948009, 3061157, 21428099]

約数ペア:

[(1, 21428099), (7, 3061157), (11, 1948009), (31, 691229), (47, 455917), (77, 278287), (191, 112189), (217, 98747), (329, 65131), (341, 62839), (517, 41447), (1337, 16027), (1457, 14707), (2101, 10199), (2387, 8977), (3619, 5921)]