21864115

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1657}}^1$

素因数の和:1711

約数の個数: 32

約数和(自身を含む): 33425280

約数和(自身を除く): 11561165

約数列:

[1, 5, 7, 13, 29, 35, 65, 91, 145, 203, 377, 455, 1015, 1657, 1885, 2639, 8285, 11599, 13195, 21541, 48053, 57995, 107705, 150787, 240265, 336371, 624689, 753935, 1681855, 3123445, 4372823, 21864115]

約数ペア:

[(1, 21864115), (5, 4372823), (7, 3123445), (13, 1681855), (29, 753935), (35, 624689), (65, 336371), (91, 240265), (145, 150787), (203, 107705), (377, 57995), (455, 48053), (1015, 21541), (1657, 13195), (1885, 11599), (2639, 8285)]