21261142

素因数分解:

$2^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{4007}}^1$

素因数の和:4395

約数の個数: 16

約数和(自身を含む): 36552960

約数和(自身を除く): 15291818

約数列:

[1, 2, 7, 14, 379, 758, 2653, 4007, 5306, 8014, 28049, 56098, 1518653, 3037306, 10630571, 21261142]

約数ペア:

[(1, 21261142), (2, 10630571), (7, 3037306), (14, 1518653), (379, 56098), (758, 28049), (2653, 8014), (4007, 5306)]