21223850

素因数分解:

$2^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{8009}}^1$

素因数の和:8074

約数の個数: 24

約数和(自身を含む): 40226220

約数和(自身を除く): 19002370

約数列:

[1, 2, 5, 10, 25, 50, 53, 106, 265, 530, 1325, 2650, 8009, 16018, 40045, 80090, 200225, 400450, 424477, 848954, 2122385, 4244770, 10611925, 21223850]

約数ペア:

[(1, 21223850), (2, 10611925), (5, 4244770), (10, 2122385), (25, 848954), (50, 424477), (53, 400450), (106, 200225), (265, 80090), (530, 40045), (1325, 16018), (2650, 8009)]