20587788

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43991}}^1$

素因数の和:44014

約数の個数: 36

約数和(自身を含む): 56045808

約数和(自身を除く): 35458020

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 43991, 87982, 131973, 175964, 263946, 395919, 527892, 571883, 791838, 1143766, 1583676, 1715649, 2287532, 3431298, 5146947, 6862596, 10293894, 20587788]

約数ペア:

[(1, 20587788), (2, 10293894), (3, 6862596), (4, 5146947), (6, 3431298), (9, 2287532), (12, 1715649), (13, 1583676), (18, 1143766), (26, 791838), (36, 571883), (39, 527892), (52, 395919), (78, 263946), (117, 175964), (156, 131973), (234, 87982), (468, 43991)]