21850840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{937}}^1$

素因数の和:1012

約数の個数: 64

約数和(自身を含む): 54704160

約数和(自身を除く): 32853320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 53, 55, 88, 106, 110, 212, 220, 265, 424, 440, 530, 583, 937, 1060, 1166, 1874, 2120, 2332, 2915, 3748, 4664, 4685, 5830, 7496, 9370, 10307, 11660, 18740, 20614, 23320, 37480, 41228, 49661, 51535, 82456, 99322, 103070, 198644, 206140, 248305, 397288, 412280, 496610, 546271, 993220, 1092542, 1986440, 2185084, 2731355, 4370168, 5462710, 10925420, 21850840]

約数ペア:

[(1, 21850840), (2, 10925420), (4, 5462710), (5, 4370168), (8, 2731355), (10, 2185084), (11, 1986440), (20, 1092542), (22, 993220), (40, 546271), (44, 496610), (53, 412280), (55, 397288), (88, 248305), (106, 206140), (110, 198644), (212, 103070), (220, 99322), (265, 82456), (424, 51535), (440, 49661), (530, 41228), (583, 37480), (937, 23320), (1060, 20614), (1166, 18740), (1874, 11660), (2120, 10307), (2332, 9370), (2915, 7496), (3748, 5830), (4664, 4685)]