19527137

素因数分解:

$7^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:261

約数の個数: 24

約数和(自身を含む): 23748480

約数和(自身を除く): 4221343

約数列:

[1, 7, 47, 49, 61, 139, 329, 427, 973, 2303, 2867, 2989, 6533, 6811, 8479, 20069, 45731, 59353, 140483, 320117, 398513, 415471, 2789591, 19527137]

約数ペア:

[(1, 19527137), (7, 2789591), (47, 415471), (49, 398513), (61, 320117), (139, 140483), (329, 59353), (427, 45731), (973, 20069), (2303, 8479), (2867, 6811), (2989, 6533)]