51387681

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:537

約数の個数: 32

約数和(自身を含む): 75352320

約数和(自身を除く): 23964639

約数列:

[1, 3, 23, 29, 61, 69, 87, 183, 421, 667, 1263, 1403, 1769, 2001, 4209, 5307, 9683, 12209, 25681, 29049, 36627, 40687, 77043, 122061, 280807, 590663, 744749, 842421, 1771989, 2234247, 17129227, 51387681]

約数ペア:

[(1, 51387681), (3, 17129227), (23, 2234247), (29, 1771989), (61, 842421), (69, 744749), (87, 590663), (183, 280807), (421, 122061), (667, 77043), (1263, 40687), (1403, 36627), (1769, 29049), (2001, 25681), (4209, 12209), (5307, 9683)]