21153972

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{251833}}^1$

素因数の和:251847

約数の個数: 24

約数和(自身を含む): 56410816

約数和(自身を除く): 35256844

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 251833, 503666, 755499, 1007332, 1510998, 1762831, 3021996, 3525662, 5288493, 7051324, 10576986, 21153972]

約数ペア:

[(1, 21153972), (2, 10576986), (3, 7051324), (4, 5288493), (6, 3525662), (7, 3021996), (12, 1762831), (14, 1510998), (21, 1007332), (28, 755499), (42, 503666), (84, 251833)]