21020471217

素因数分解:

$3^3\times {\mathrm{30703}}^1\times {\mathrm{25357}}^1$

素因数の和:56069

約数の個数: 16

約数和(自身を含む): 31143681280

約数和(自身を除く): 10123210063

約数列:

[1, 3, 9, 27, 25357, 30703, 76071, 92109, 228213, 276327, 684639, 828981, 778535971, 2335607913, 7006823739, 21020471217]

約数ペア:

[(1, 21020471217), (3, 7006823739), (9, 2335607913), (27, 778535971), (25357, 828981), (30703, 684639), (76071, 276327), (92109, 228213)]