21870125

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{7607}}^1$

素因数の和:7645

約数の個数: 16

約数和(自身を含む): 28484352

約数和(自身を除く): 6614227

約数列:

[1, 5, 23, 25, 115, 125, 575, 2875, 7607, 38035, 174961, 190175, 874805, 950875, 4374025, 21870125]

約数ペア:

[(1, 21870125), (5, 4374025), (23, 950875), (25, 874805), (115, 190175), (125, 174961), (575, 38035), (2875, 7607)]