16819407

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:505

約数の個数: 40

約数和(自身を含む): 28110720

約数和(自身を除く): 11291313

約数列:

[1, 3, 9, 11, 27, 33, 43, 81, 99, 129, 297, 387, 439, 473, 891, 1161, 1317, 1419, 3483, 3951, 4257, 4829, 11853, 12771, 14487, 18877, 35559, 38313, 43461, 56631, 130383, 169893, 207647, 391149, 509679, 622941, 1529037, 1868823, 5606469, 16819407]

約数ペア:

[(1, 16819407), (3, 5606469), (9, 1868823), (11, 1529037), (27, 622941), (33, 509679), (43, 391149), (81, 207647), (99, 169893), (129, 130383), (297, 56631), (387, 43461), (439, 38313), (473, 35559), (891, 18877), (1161, 14487), (1317, 12771), (1419, 11853), (3483, 4829), (3951, 4257)]