21017284

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{167}}^1\times {\mathrm{431}}^1$

素因数の和:675

約数の個数: 24

約数和(自身を含む): 37594368

約数和(自身を除く): 16577084

約数列:

[1, 2, 4, 73, 146, 167, 292, 334, 431, 668, 862, 1724, 12191, 24382, 31463, 48764, 62926, 71977, 125852, 143954, 287908, 5254321, 10508642, 21017284]

約数ペア:

[(1, 21017284), (2, 10508642), (4, 5254321), (73, 287908), (146, 143954), (167, 125852), (292, 71977), (334, 62926), (431, 48764), (668, 31463), (862, 24382), (1724, 12191)]