21513583

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{4007}}^1$

素因数の和:4086

約数の個数: 16

約数和(自身を含む): 26933760

約数和(自身を除く): 5420177

約数列:

[1, 7, 13, 59, 91, 413, 767, 4007, 5369, 28049, 52091, 236413, 364637, 1654891, 3073369, 21513583]

約数ペア:

[(1, 21513583), (7, 3073369), (13, 1654891), (59, 364637), (91, 236413), (413, 52091), (767, 28049), (4007, 5369)]