17912979

素因数分解:

$3^2\times 7^2\times {\mathrm{151}}^1\times {\mathrm{269}}^1$

素因数の和:440

約数の個数: 36

約数和(自身を含む): 30410640

約数和(自身を除く): 12497661

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 151, 269, 441, 453, 807, 1057, 1359, 1883, 2421, 3171, 5649, 7399, 9513, 13181, 16947, 22197, 39543, 40619, 66591, 118629, 121857, 284333, 365571, 852999, 1990331, 2558997, 5970993, 17912979]

約数ペア:

[(1, 17912979), (3, 5970993), (7, 2558997), (9, 1990331), (21, 852999), (49, 365571), (63, 284333), (147, 121857), (151, 118629), (269, 66591), (441, 40619), (453, 39543), (807, 22197), (1057, 16947), (1359, 13181), (1883, 9513), (2421, 7399), (3171, 5649)]