20993658

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{101}}^2$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 49454400

約数和(自身を除く): 28460742

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 101, 147, 202, 294, 303, 343, 606, 686, 707, 1029, 1414, 2058, 2121, 4242, 4949, 9898, 10201, 14847, 20402, 29694, 30603, 34643, 61206, 69286, 71407, 103929, 142814, 207858, 214221, 428442, 499849, 999698, 1499547, 2999094, 3498943, 6997886, 10496829, 20993658]

約数ペア:

[(1, 20993658), (2, 10496829), (3, 6997886), (6, 3498943), (7, 2999094), (14, 1499547), (21, 999698), (42, 499849), (49, 428442), (98, 214221), (101, 207858), (147, 142814), (202, 103929), (294, 71407), (303, 69286), (343, 61206), (606, 34643), (686, 30603), (707, 29694), (1029, 20402), (1414, 14847), (2058, 10201), (2121, 9898), (4242, 4949)]