21425886

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{607}}^1$

素因数の和:705

約数の個数: 48

約数和(自身を含む): 48657024

約数和(自身を除く): 27231138

約数列:

[1, 2, 3, 6, 9, 18, 37, 53, 74, 106, 111, 159, 222, 318, 333, 477, 607, 666, 954, 1214, 1821, 1961, 3642, 3922, 5463, 5883, 10926, 11766, 17649, 22459, 32171, 35298, 44918, 64342, 67377, 96513, 134754, 193026, 202131, 289539, 404262, 579078, 1190327, 2380654, 3570981, 7141962, 10712943, 21425886]

約数ペア:

[(1, 21425886), (2, 10712943), (3, 7141962), (6, 3570981), (9, 2380654), (18, 1190327), (37, 579078), (53, 404262), (74, 289539), (106, 202131), (111, 193026), (159, 134754), (222, 96513), (318, 67377), (333, 64342), (477, 44918), (607, 35298), (666, 32171), (954, 22459), (1214, 17649), (1821, 11766), (1961, 10926), (3642, 5883), (3922, 5463)]