21709870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23857}}^1$

素因数の和:23884

約数の個数: 32

約数和(自身を含む): 48097728

約数和(自身を除く): 26387858

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 23857, 47714, 119285, 166999, 238570, 310141, 333998, 620282, 834995, 1550705, 1669990, 2170987, 3101410, 4341974, 10854935, 21709870]

約数ペア:

[(1, 21709870), (2, 10854935), (5, 4341974), (7, 3101410), (10, 2170987), (13, 1669990), (14, 1550705), (26, 834995), (35, 620282), (65, 333998), (70, 310141), (91, 238570), (130, 166999), (182, 119285), (455, 47714), (910, 23857)]