21417872

素因数分解:

$2^4\times 7^1\times {\mathrm{191231}}^1$

素因数の和:191246

約数の個数: 20

約数和(自身を含む): 47425536

約数和(自身を除く): 26007664

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 191231, 382462, 764924, 1338617, 1529848, 2677234, 3059696, 5354468, 10708936, 21417872]

約数ペア:

[(1, 21417872), (2, 10708936), (4, 5354468), (7, 3059696), (8, 2677234), (14, 1529848), (16, 1338617), (28, 764924), (56, 382462), (112, 191231)]