640908886947

素因数分解:

$3^1\times 7^4\times {\mathrm{367}}^1\times {\mathrm{242447}}^1$

素因数の和:242845

約数の個数: 40

約数和(自身を含む): 999630560256

約数和(自身を除く): 358721673309

約数列:

[1, 3, 7, 21, 49, 147, 343, 367, 1029, 1101, 2401, 2569, 7203, 7707, 17983, 53949, 125881, 242447, 377643, 727341, 881167, 1697129, 2643501, 5091387, 11879903, 35639709, 83159321, 88978049, 249477963, 266934147, 582115247, 622846343, 1746345741, 1868539029, 4359924401, 13079773203, 30519470807, 91558412421, 213636295649, 640908886947]

約数ペア:

[(1, 640908886947), (3, 213636295649), (7, 91558412421), (21, 30519470807), (49, 13079773203), (147, 4359924401), (343, 1868539029), (367, 1746345741), (1029, 622846343), (1101, 582115247), (2401, 266934147), (2569, 249477963), (7203, 88978049), (7707, 83159321), (17983, 35639709), (53949, 11879903), (125881, 5091387), (242447, 2643501), (377643, 1697129), (727341, 881167)]