21968276211

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1439}}^1\times {\mathrm{3413}}^1$

素因数の和:4936

約数の個数: 48

約数和(自身を含む): 36812206080

約数和(自身を除く): 14843929869

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1439, 1491, 3413, 4317, 4473, 10073, 10239, 12951, 23891, 30219, 30717, 71673, 90657, 102169, 215019, 242323, 306507, 715183, 726969, 919521, 1696261, 2145549, 2180907, 4911307, 5088783, 6436647, 14733921, 15266349, 34379149, 44201763, 103137447, 309412341, 348702797, 1046108391, 2440919579, 3138325173, 7322758737, 21968276211]

約数ペア:

[(1, 21968276211), (3, 7322758737), (7, 3138325173), (9, 2440919579), (21, 1046108391), (63, 348702797), (71, 309412341), (213, 103137447), (497, 44201763), (639, 34379149), (1439, 15266349), (1491, 14733921), (3413, 6436647), (4317, 5088783), (4473, 4911307), (10073, 2180907), (10239, 2145549), (12951, 1696261), (23891, 919521), (30219, 726969), (30717, 715183), (71673, 306507), (90657, 242323), (102169, 215019)]