21404508

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{353}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 52018176

約数和(自身を除く): 30613668

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 163, 186, 326, 353, 372, 489, 652, 706, 978, 1059, 1412, 1956, 2118, 4236, 5053, 10106, 10943, 15159, 20212, 21886, 30318, 32829, 43772, 57539, 60636, 65658, 115078, 131316, 172617, 230156, 345234, 690468, 1783709, 3567418, 5351127, 7134836, 10702254, 21404508]

約数ペア:

[(1, 21404508), (2, 10702254), (3, 7134836), (4, 5351127), (6, 3567418), (12, 1783709), (31, 690468), (62, 345234), (93, 230156), (124, 172617), (163, 131316), (186, 115078), (326, 65658), (353, 60636), (372, 57539), (489, 43772), (652, 32829), (706, 30318), (978, 21886), (1059, 20212), (1412, 15159), (1956, 10943), (2118, 10106), (4236, 5053)]