197582721

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 333121536

約数和(自身を除く): 135538815

約数列:

[1, 3, 7, 17, 21, 43, 51, 61, 119, 129, 183, 211, 301, 357, 427, 633, 731, 903, 1037, 1281, 1477, 2193, 2623, 3111, 3587, 4431, 5117, 7259, 7869, 9073, 10761, 12871, 15351, 18361, 21777, 25109, 27219, 38613, 44591, 55083, 63511, 75327, 90097, 133773, 154241, 190533, 218807, 270291, 312137, 462723, 553453, 656421, 936411, 1079687, 1531649, 1660359, 3239061, 3874171, 4594947, 9408701, 11622513, 28226103, 65860907, 197582721]

約数ペア:

[(1, 197582721), (3, 65860907), (7, 28226103), (17, 11622513), (21, 9408701), (43, 4594947), (51, 3874171), (61, 3239061), (119, 1660359), (129, 1531649), (183, 1079687), (211, 936411), (301, 656421), (357, 553453), (427, 462723), (633, 312137), (731, 270291), (903, 218807), (1037, 190533), (1281, 154241), (1477, 133773), (2193, 90097), (2623, 75327), (3111, 63511), (3587, 55083), (4431, 44591), (5117, 38613), (7259, 27219), (7869, 25109), (9073, 21777), (10761, 18361), (12871, 15351)]