21031858197

素因数分解:

$3^3\times 7^1\times {\mathrm{8627}}^1\times {\mathrm{12899}}^1$

素因数の和:21542

約数の個数: 32

約数和(自身を含む): 35616384000

約数和(自身を除く): 14584525803

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 8627, 12899, 25881, 38697, 60389, 77643, 90293, 116091, 181167, 232929, 270879, 348273, 543501, 812637, 1630503, 2437911, 111279673, 333839019, 778957711, 1001517057, 2336873133, 3004551171, 7010619399, 21031858197]

約数ペア:

[(1, 21031858197), (3, 7010619399), (7, 3004551171), (9, 2336873133), (21, 1001517057), (27, 778957711), (63, 333839019), (189, 111279673), (8627, 2437911), (12899, 1630503), (25881, 812637), (38697, 543501), (60389, 348273), (77643, 270879), (90293, 232929), (116091, 181167)]