20765654

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1607}}^1$

素因数の和:1700

約数の個数: 32

約数和(自身を含む): 38900736

約数和(自身を除く): 18135082

約数列:

[1, 2, 7, 13, 14, 26, 71, 91, 142, 182, 497, 923, 994, 1607, 1846, 3214, 6461, 11249, 12922, 20891, 22498, 41782, 114097, 146237, 228194, 292474, 798679, 1483261, 1597358, 2966522, 10382827, 20765654]

約数ペア:

[(1, 20765654), (2, 10382827), (7, 2966522), (13, 1597358), (14, 1483261), (26, 798679), (71, 292474), (91, 228194), (142, 146237), (182, 114097), (497, 41782), (923, 22498), (994, 20891), (1607, 12922), (1846, 11249), (3214, 6461)]