18867970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3989}}^1$

素因数の和:4050

約数の個数: 32

約数和(自身を含む): 37920960

約数和(自身を除く): 19052990

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 215, 430, 473, 946, 2365, 3989, 4730, 7978, 19945, 39890, 43879, 87758, 171527, 219395, 343054, 438790, 857635, 1715270, 1886797, 3773594, 9433985, 18867970]

約数ペア:

[(1, 18867970), (2, 9433985), (5, 3773594), (10, 1886797), (11, 1715270), (22, 857635), (43, 438790), (55, 343054), (86, 219395), (110, 171527), (215, 87758), (430, 43879), (473, 39890), (946, 19945), (2365, 7978), (3989, 4730)]