157378641

素因数分解:

$3^1\times 7^2\times {\mathrm{421}}^1\times {\mathrm{2543}}^1$

素因数の和:2981

約数の個数: 24

約数和(自身を含む): 244773504

約数和(自身を除く): 87394863

約数列:

[1, 3, 7, 21, 49, 147, 421, 1263, 2543, 2947, 7629, 8841, 17801, 20629, 53403, 61887, 124607, 373821, 1070603, 3211809, 7494221, 22482663, 52459547, 157378641]

約数ペア:

[(1, 157378641), (3, 52459547), (7, 22482663), (21, 7494221), (49, 3211809), (147, 1070603), (421, 373821), (1263, 124607), (2543, 61887), (2947, 53403), (7629, 20629), (8841, 17801)]