20211642711

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{5507}}^1$

素因数の和:5685

約数の個数: 72

約数和(自身を含む): 33545041920

約数和(自身を除く): 13333399209

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 127, 169, 171, 247, 381, 507, 741, 1143, 1521, 1651, 2223, 2413, 3211, 4953, 5507, 7239, 9633, 14859, 16521, 21463, 21717, 28899, 31369, 49563, 64389, 71591, 94107, 104633, 193167, 214773, 282321, 313899, 407797, 644319, 699389, 930683, 941697, 1223391, 1360229, 2098167, 2792049, 3670173, 4080687, 6294501, 8376147, 9092057, 12242061, 13288391, 17682977, 27276171, 39865173, 53048931, 81828513, 118196741, 119595519, 159146793, 172749083, 354590223, 518247249, 1063770669, 1554741747, 2245738079, 6737214237, 20211642711]

約数ペア:

[(1, 20211642711), (3, 6737214237), (9, 2245738079), (13, 1554741747), (19, 1063770669), (39, 518247249), (57, 354590223), (117, 172749083), (127, 159146793), (169, 119595519), (171, 118196741), (247, 81828513), (381, 53048931), (507, 39865173), (741, 27276171), (1143, 17682977), (1521, 13288391), (1651, 12242061), (2223, 9092057), (2413, 8376147), (3211, 6294501), (4953, 4080687), (5507, 3670173), (7239, 2792049), (9633, 2098167), (14859, 1360229), (16521, 1223391), (21463, 941697), (21717, 930683), (28899, 699389), (31369, 644319), (49563, 407797), (64389, 313899), (71591, 282321), (94107, 214773), (104633, 193167)]