20520038

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{7013}}^1$

素因数の和:7052

約数の個数: 32

約数和(自身を含む): 40400640

約数和(自身を除く): 19880602

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 77, 133, 154, 209, 266, 418, 1463, 2926, 7013, 14026, 49091, 77143, 98182, 133247, 154286, 266494, 540001, 932729, 1080002, 1465717, 1865458, 2931434, 10260019, 20520038]

約数ペア:

[(1, 20520038), (2, 10260019), (7, 2931434), (11, 1865458), (14, 1465717), (19, 1080002), (22, 932729), (38, 540001), (77, 266494), (133, 154286), (154, 133247), (209, 98182), (266, 77143), (418, 49091), (1463, 14026), (2926, 7013)]