407581321

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{883}}^1$

素因数の和:1021

約数の個数: 32

約数和(自身を含む): 505110528

約数和(自身を除く): 97529207

約数列:

[1, 7, 23, 47, 61, 161, 329, 427, 883, 1081, 1403, 2867, 6181, 7567, 9821, 20069, 20309, 41501, 53863, 65941, 142163, 290507, 377041, 461587, 954523, 1238849, 2531561, 6681661, 8671943, 17720927, 58225903, 407581321]

約数ペア:

[(1, 407581321), (7, 58225903), (23, 17720927), (47, 8671943), (61, 6681661), (161, 2531561), (329, 1238849), (427, 954523), (883, 461587), (1081, 377041), (1403, 290507), (2867, 142163), (6181, 65941), (7567, 53863), (9821, 41501), (20069, 20309)]