20753872

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1861}}^1$

素因数の和:1927

約数の個数: 40

約数和(自身を含む): 43637832

約数和(自身を除く): 22883960

約数列:

[1, 2, 4, 8, 16, 17, 34, 41, 68, 82, 136, 164, 272, 328, 656, 697, 1394, 1861, 2788, 3722, 5576, 7444, 11152, 14888, 29776, 31637, 63274, 76301, 126548, 152602, 253096, 305204, 506192, 610408, 1220816, 1297117, 2594234, 5188468, 10376936, 20753872]

約数ペア:

[(1, 20753872), (2, 10376936), (4, 5188468), (8, 2594234), (16, 1297117), (17, 1220816), (34, 610408), (41, 506192), (68, 305204), (82, 253096), (136, 152602), (164, 126548), (272, 76301), (328, 63274), (656, 31637), (697, 29776), (1394, 14888), (1861, 11152), (2788, 7444), (3722, 5576)]