21295172

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{167}}^1\times {\mathrm{449}}^1$

素因数の和:691

約数の個数: 24

約数和(自身を含む): 38102400

約数和(自身を除く): 16807228

約数列:

[1, 2, 4, 71, 142, 167, 284, 334, 449, 668, 898, 1796, 11857, 23714, 31879, 47428, 63758, 74983, 127516, 149966, 299932, 5323793, 10647586, 21295172]

約数ペア:

[(1, 21295172), (2, 10647586), (4, 5323793), (71, 299932), (142, 149966), (167, 127516), (284, 74983), (334, 63758), (449, 47428), (668, 31879), (898, 23714), (1796, 11857)]