16861203

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:205

約数の個数: 40

約数和(自身を含む): 26577408

約数和(自身を除く): 9716205

約数列:

[1, 3, 9, 27, 43, 47, 81, 103, 129, 141, 309, 387, 423, 927, 1161, 1269, 2021, 2781, 3483, 3807, 4429, 4841, 6063, 8343, 13287, 14523, 18189, 39861, 43569, 54567, 119583, 130707, 163701, 208163, 358749, 392121, 624489, 1873467, 5620401, 16861203]

約数ペア:

[(1, 16861203), (3, 5620401), (9, 1873467), (27, 624489), (43, 392121), (47, 358749), (81, 208163), (103, 163701), (129, 130707), (141, 119583), (309, 54567), (387, 43569), (423, 39861), (927, 18189), (1161, 14523), (1269, 13287), (2021, 8343), (2781, 6063), (3483, 4841), (3807, 4429)]