261008839

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{733}}^1$

素因数の和:816

約数の個数: 36

約数和(自身を含む): 336879576

約数和(自身を除く): 75870737

約数列:

[1, 7, 13, 43, 49, 91, 169, 301, 559, 637, 733, 1183, 2107, 3913, 5131, 7267, 8281, 9529, 27391, 31519, 35917, 50869, 66703, 123877, 220633, 356083, 409747, 466921, 867139, 1544431, 2868229, 5326711, 6069973, 20077603, 37286977, 261008839]

約数ペア:

[(1, 261008839), (7, 37286977), (13, 20077603), (43, 6069973), (49, 5326711), (91, 2868229), (169, 1544431), (301, 867139), (559, 466921), (637, 409747), (733, 356083), (1183, 220633), (2107, 123877), (3913, 66703), (5131, 50869), (7267, 35917), (8281, 31519), (9529, 27391)]