261325869

素因数分解:

$3^1\times 7^3\times {\mathrm{229}}^1\times {\mathrm{1109}}^1$

素因数の和:1362

約数の個数: 32

約数和(自身を含む): 408480000

約数和(自身を除く): 147154131

約数列:

[1, 3, 7, 21, 49, 147, 229, 343, 687, 1029, 1109, 1603, 3327, 4809, 7763, 11221, 23289, 33663, 54341, 78547, 163023, 235641, 253961, 380387, 761883, 1141161, 1777727, 5333181, 12444089, 37332267, 87108623, 261325869]

約数ペア:

[(1, 261325869), (3, 87108623), (7, 37332267), (21, 12444089), (49, 5333181), (147, 1777727), (229, 1141161), (343, 761883), (687, 380387), (1029, 253961), (1109, 235641), (1603, 163023), (3327, 78547), (4809, 54341), (7763, 33663), (11221, 23289)]