20823156

素因数分解:

$2^2\times 3^6\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:252

約数の個数: 84

約数和(自身を含む): 56403172

約数和(自身を除く): 35580016

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 37, 54, 74, 81, 108, 111, 148, 162, 193, 222, 243, 324, 333, 386, 444, 486, 579, 666, 729, 772, 972, 999, 1158, 1332, 1458, 1737, 1998, 2316, 2916, 2997, 3474, 3996, 5211, 5994, 6948, 7141, 8991, 10422, 11988, 14282, 15633, 17982, 20844, 21423, 26973, 28564, 31266, 35964, 42846, 46899, 53946, 62532, 64269, 85692, 93798, 107892, 128538, 140697, 187596, 192807, 257076, 281394, 385614, 562788, 578421, 771228, 1156842, 1735263, 2313684, 3470526, 5205789, 6941052, 10411578, 20823156]

約数ペア:

[(1, 20823156), (2, 10411578), (3, 6941052), (4, 5205789), (6, 3470526), (9, 2313684), (12, 1735263), (18, 1156842), (27, 771228), (36, 578421), (37, 562788), (54, 385614), (74, 281394), (81, 257076), (108, 192807), (111, 187596), (148, 140697), (162, 128538), (193, 107892), (222, 93798), (243, 85692), (324, 64269), (333, 62532), (386, 53946), (444, 46899), (486, 42846), (579, 35964), (666, 31266), (729, 28564), (772, 26973), (972, 21423), (999, 20844), (1158, 17982), (1332, 15633), (1458, 14282), (1737, 11988), (1998, 10422), (2316, 8991), (2916, 7141), (2997, 6948), (3474, 5994), (3996, 5211)]