20474235

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3527}}^1$

素因数の和:3584

約数の個数: 32

約数和(自身を含む): 37255680

約数和(自身を除く): 16781445

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 3527, 5805, 10581, 17635, 31743, 52905, 95229, 151661, 158715, 454983, 476145, 758305, 1364949, 2274915, 4094847, 6824745, 20474235]

約数ペア:

[(1, 20474235), (3, 6824745), (5, 4094847), (9, 2274915), (15, 1364949), (27, 758305), (43, 476145), (45, 454983), (129, 158715), (135, 151661), (215, 95229), (387, 52905), (645, 31743), (1161, 17635), (1935, 10581), (3527, 5805)]