20879138

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1481}}^1$

素因数の和:1562

約数の個数: 32

約数和(自身を含む): 38413440

約数和(自身を除く): 17534302

約数列:

[1, 2, 7, 14, 19, 38, 53, 106, 133, 266, 371, 742, 1007, 1481, 2014, 2962, 7049, 10367, 14098, 20734, 28139, 56278, 78493, 156986, 196973, 393946, 549451, 1098902, 1491367, 2982734, 10439569, 20879138]

約数ペア:

[(1, 20879138), (2, 10439569), (7, 2982734), (14, 1491367), (19, 1098902), (38, 549451), (53, 393946), (106, 196973), (133, 156986), (266, 78493), (371, 56278), (742, 28139), (1007, 20734), (1481, 14098), (2014, 10367), (2962, 7049)]