21028254

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{1049}}^1$

素因数の和:1324

約数の個数: 32

約数和(自身を含む): 45511200

約数和(自身を除く): 24482946

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 257, 514, 771, 1049, 1542, 2098, 3147, 3341, 6294, 6682, 10023, 13637, 20046, 27274, 40911, 81822, 269593, 539186, 808779, 1617558, 3504709, 7009418, 10514127, 21028254]

約数ペア:

[(1, 21028254), (2, 10514127), (3, 7009418), (6, 3504709), (13, 1617558), (26, 808779), (39, 539186), (78, 269593), (257, 81822), (514, 40911), (771, 27274), (1049, 20046), (1542, 13637), (2098, 10023), (3147, 6682), (3341, 6294)]