20913196

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:346

約数の個数: 36

約数和(自身を含む): 39541600

約数和(自身を除く): 18628404

約数列:

[1, 2, 4, 17, 34, 68, 79, 158, 229, 289, 316, 458, 578, 916, 1156, 1343, 2686, 3893, 5372, 7786, 15572, 18091, 22831, 36182, 45662, 66181, 72364, 91324, 132362, 264724, 307547, 615094, 1230188, 5228299, 10456598, 20913196]

約数ペア:

[(1, 20913196), (2, 10456598), (4, 5228299), (17, 1230188), (34, 615094), (68, 307547), (79, 264724), (158, 132362), (229, 91324), (289, 72364), (316, 66181), (458, 45662), (578, 36182), (916, 22831), (1156, 18091), (1343, 15572), (2686, 7786), (3893, 5372)]