21384168

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{68539}}^1$

素因数の和:68561

約数の個数: 32

約数和(自身を含む): 57573600

約数和(自身を除く): 36189432

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 68539, 137078, 205617, 274156, 411234, 548312, 822468, 891007, 1644936, 1782014, 2673021, 3564028, 5346042, 7128056, 10692084, 21384168]

約数ペア:

[(1, 21384168), (2, 10692084), (3, 7128056), (4, 5346042), (6, 3564028), (8, 2673021), (12, 1782014), (13, 1644936), (24, 891007), (26, 822468), (39, 548312), (52, 411234), (78, 274156), (104, 205617), (156, 137078), (312, 68539)]