21095580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31963}}^1$

素因数の和:31986

約数の個数: 48

約数和(自身を含む): 64439424

約数和(自身を除く): 43343844

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 31963, 63926, 95889, 127852, 159815, 191778, 319630, 351593, 383556, 479445, 639260, 703186, 958890, 1054779, 1406372, 1757965, 1917780, 2109558, 3515930, 4219116, 5273895, 7031860, 10547790, 21095580]

約数ペア:

[(1, 21095580), (2, 10547790), (3, 7031860), (4, 5273895), (5, 4219116), (6, 3515930), (10, 2109558), (11, 1917780), (12, 1757965), (15, 1406372), (20, 1054779), (22, 958890), (30, 703186), (33, 639260), (44, 479445), (55, 383556), (60, 351593), (66, 319630), (110, 191778), (132, 159815), (165, 127852), (220, 95889), (330, 63926), (660, 31963)]