20023612

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 41513472

約数和(自身を除く): 21489860

約数列:

[1, 2, 4, 7, 14, 28, 53, 103, 106, 131, 206, 212, 262, 371, 412, 524, 721, 742, 917, 1442, 1484, 1834, 2884, 3668, 5459, 6943, 10918, 13493, 13886, 21836, 26986, 27772, 38213, 48601, 53972, 76426, 94451, 97202, 152852, 188902, 194404, 377804, 715129, 1430258, 2860516, 5005903, 10011806, 20023612]

約数ペア:

[(1, 20023612), (2, 10011806), (4, 5005903), (7, 2860516), (14, 1430258), (28, 715129), (53, 377804), (103, 194404), (106, 188902), (131, 152852), (206, 97202), (212, 94451), (262, 76426), (371, 53972), (412, 48601), (524, 38213), (721, 27772), (742, 26986), (917, 21836), (1442, 13886), (1484, 13493), (1834, 10918), (2884, 6943), (3668, 5459)]