19809625

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{14407}}^1$

素因数の和:14433

約数の個数: 16

約数和(自身を含む): 26971776

約数和(自身を除く): 7162151

約数列:

[1, 5, 11, 25, 55, 125, 275, 1375, 14407, 72035, 158477, 360175, 792385, 1800875, 3961925, 19809625]

約数ペア:

[(1, 19809625), (5, 3961925), (11, 1800875), (25, 792385), (55, 360175), (125, 158477), (275, 72035), (1375, 14407)]