16221868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1987}}^1$

素因数の和:2161

約数の個数: 24

約数和(自身を含む): 30782192

約数和(自身を除く): 14560324

約数列:

[1, 2, 4, 13, 26, 52, 157, 314, 628, 1987, 2041, 3974, 4082, 7948, 8164, 25831, 51662, 103324, 311959, 623918, 1247836, 4055467, 8110934, 16221868]

約数ペア:

[(1, 16221868), (2, 8110934), (4, 4055467), (13, 1247836), (26, 623918), (52, 311959), (157, 103324), (314, 51662), (628, 25831), (1987, 8164), (2041, 7948), (3974, 4082)]