221781126

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{5280503}}^1$

素因数の和:5280515

約数の個数: 16

約数和(自身を含む): 506928384

約数和(自身を除く): 285147258

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 5280503, 10561006, 15841509, 31683018, 36963521, 73927042, 110890563, 221781126]

約数ペア:

[(1, 221781126), (2, 110890563), (3, 73927042), (6, 36963521), (7, 31683018), (14, 15841509), (21, 10561006), (42, 5280503)]