201880917

素因数分解:

$3^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{9623}}^1$

素因数の和:9679

約数の個数: 40

約数和(自身を含む): 354009216

約数和(自身を除く): 152128299

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 81, 111, 189, 259, 333, 567, 777, 999, 2331, 2997, 6993, 9623, 20979, 28869, 67361, 86607, 202083, 259821, 356051, 606249, 779463, 1068153, 1818747, 2492357, 3204459, 5456241, 7477071, 9613377, 22431213, 28840131, 67293639, 201880917]

約数ペア:

[(1, 201880917), (3, 67293639), (7, 28840131), (9, 22431213), (21, 9613377), (27, 7477071), (37, 5456241), (63, 3204459), (81, 2492357), (111, 1818747), (189, 1068153), (259, 779463), (333, 606249), (567, 356051), (777, 259821), (999, 202083), (2331, 86607), (2997, 67361), (6993, 28869), (9623, 20979)]