21357954

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{32069}}^1$

素因数の和:32114

約数の個数: 24

約数和(自身を含む): 47527740

約数和(自身を除く): 26169786

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666, 32069, 64138, 96207, 192414, 288621, 577242, 1186553, 2373106, 3559659, 7119318, 10678977, 21357954]

約数ペア:

[(1, 21357954), (2, 10678977), (3, 7119318), (6, 3559659), (9, 2373106), (18, 1186553), (37, 577242), (74, 288621), (111, 192414), (222, 96207), (333, 64138), (666, 32069)]