201968721

素因数分解:

$3^6\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{379}}^1$

素因数の和:457

約数の個数: 56

約数和(自身を含む): 328949280

約数和(自身を除く): 126980559

約数列:

[1, 3, 9, 17, 27, 43, 51, 81, 129, 153, 243, 379, 387, 459, 729, 731, 1137, 1161, 1377, 2193, 3411, 3483, 4131, 6443, 6579, 10233, 10449, 12393, 16297, 19329, 19737, 30699, 31347, 48891, 57987, 59211, 92097, 146673, 173961, 177633, 276291, 277049, 440019, 521883, 532899, 831147, 1320057, 1565649, 2493441, 3960171, 4696947, 7480323, 11880513, 22440969, 67322907, 201968721]

約数ペア:

[(1, 201968721), (3, 67322907), (9, 22440969), (17, 11880513), (27, 7480323), (43, 4696947), (51, 3960171), (81, 2493441), (129, 1565649), (153, 1320057), (243, 831147), (379, 532899), (387, 521883), (459, 440019), (729, 277049), (731, 276291), (1137, 177633), (1161, 173961), (1377, 146673), (2193, 92097), (3411, 59211), (3483, 57987), (4131, 48891), (6443, 31347), (6579, 30699), (10233, 19737), (10449, 19329), (12393, 16297)]