20726498

素因数分解:

$2^1\times {\mathrm{13}}^3\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:183

約数の個数: 32

約数和(自身を含む): 34700400

約数和(自身を除く): 13973902

約数列:

[1, 2, 13, 26, 53, 89, 106, 169, 178, 338, 689, 1157, 1378, 2197, 2314, 4394, 4717, 8957, 9434, 15041, 17914, 30082, 61321, 116441, 122642, 195533, 232882, 391066, 797173, 1594346, 10363249, 20726498]

約数ペア:

[(1, 20726498), (2, 10363249), (13, 1594346), (26, 797173), (53, 391066), (89, 232882), (106, 195533), (169, 122642), (178, 116441), (338, 61321), (689, 30082), (1157, 17914), (1378, 15041), (2197, 9434), (2314, 8957), (4394, 4717)]