21217936

素因数分解:

$2^4\times {\mathrm{379}}^1\times {\mathrm{3499}}^1$

素因数の和:3886

約数の個数: 20

約数和(自身を含む): 41230000

約数和(自身を除く): 20012064

約数列:

[1, 2, 4, 8, 16, 379, 758, 1516, 3032, 3499, 6064, 6998, 13996, 27992, 55984, 1326121, 2652242, 5304484, 10608968, 21217936]

約数ペア:

[(1, 21217936), (2, 10608968), (4, 5304484), (8, 2652242), (16, 1326121), (379, 55984), (758, 27992), (1516, 13996), (3032, 6998), (3499, 6064)]