16419987

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{229}}^1\times {\mathrm{257}}^1$

素因数の和:523

約数の個数: 24

約数和(自身を含む): 24685440

約数和(自身を除く): 8265453

約数列:

[1, 3, 9, 31, 93, 229, 257, 279, 687, 771, 2061, 2313, 7099, 7967, 21297, 23901, 58853, 63891, 71703, 176559, 529677, 1824443, 5473329, 16419987]

約数ペア:

[(1, 16419987), (3, 5473329), (9, 1824443), (31, 529677), (93, 176559), (229, 71703), (257, 63891), (279, 58853), (687, 23901), (771, 21297), (2061, 7967), (2313, 7099)]