21254200

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{9661}}^1$

素因数の和:9688

約数の個数: 48

約数和(自身を含む): 53913960

約数和(自身を除く): 32659760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 9661, 19322, 38644, 48305, 77288, 96610, 106271, 193220, 212542, 241525, 386440, 425084, 483050, 531355, 850168, 966100, 1062710, 1932200, 2125420, 2656775, 4250840, 5313550, 10627100, 21254200]

約数ペア:

[(1, 21254200), (2, 10627100), (4, 5313550), (5, 4250840), (8, 2656775), (10, 2125420), (11, 1932200), (20, 1062710), (22, 966100), (25, 850168), (40, 531355), (44, 483050), (50, 425084), (55, 386440), (88, 241525), (100, 212542), (110, 193220), (200, 106271), (220, 96610), (275, 77288), (440, 48305), (550, 38644), (1100, 19322), (2200, 9661)]