21921872

素因数分解:

$2^4\times 7^1\times {\mathrm{195731}}^1$

素因数の和:195746

約数の個数: 20

約数和(自身を含む): 48541536

約数和(自身を除く): 26619664

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 195731, 391462, 782924, 1370117, 1565848, 2740234, 3131696, 5480468, 10960936, 21921872]

約数ペア:

[(1, 21921872), (2, 10960936), (4, 5480468), (7, 3131696), (8, 2740234), (14, 1565848), (16, 1370117), (28, 782924), (56, 391462), (112, 195731)]