21961784

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{4493}}^1$

素因数の和:4559

約数の個数: 32

約数和(自身を含む): 45299520

約数和(自身を除く): 23337736

約数列:

[1, 2, 4, 8, 13, 26, 47, 52, 94, 104, 188, 376, 611, 1222, 2444, 4493, 4888, 8986, 17972, 35944, 58409, 116818, 211171, 233636, 422342, 467272, 844684, 1689368, 2745223, 5490446, 10980892, 21961784]

約数ペア:

[(1, 21961784), (2, 10980892), (4, 5490446), (8, 2745223), (13, 1689368), (26, 844684), (47, 467272), (52, 422342), (94, 233636), (104, 211171), (188, 116818), (376, 58409), (611, 35944), (1222, 17972), (2444, 8986), (4493, 4888)]