20925288

素因数分解:

$2^3\times 3^2\times {\mathrm{163}}^1\times {\mathrm{1783}}^1$

素因数の和:1958

約数の個数: 48

約数和(自身を含む): 57052320

約数和(自身を除く): 36127032

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 163, 326, 489, 652, 978, 1304, 1467, 1783, 1956, 2934, 3566, 3912, 5349, 5868, 7132, 10698, 11736, 14264, 16047, 21396, 32094, 42792, 64188, 128376, 290629, 581258, 871887, 1162516, 1743774, 2325032, 2615661, 3487548, 5231322, 6975096, 10462644, 20925288]

約数ペア:

[(1, 20925288), (2, 10462644), (3, 6975096), (4, 5231322), (6, 3487548), (8, 2615661), (9, 2325032), (12, 1743774), (18, 1162516), (24, 871887), (36, 581258), (72, 290629), (163, 128376), (326, 64188), (489, 42792), (652, 32094), (978, 21396), (1304, 16047), (1467, 14264), (1783, 11736), (1956, 10698), (2934, 7132), (3566, 5868), (3912, 5349)]