19894995

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23269}}^1$

素因数の和:23299

約数の個数: 24

約数和(自身を含む): 36301200

約数和(自身を除く): 16406205

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 23269, 69807, 116345, 209421, 349035, 442111, 1047105, 1326333, 2210555, 3978999, 6631665, 19894995]

約数ペア:

[(1, 19894995), (3, 6631665), (5, 3978999), (9, 2210555), (15, 1326333), (19, 1047105), (45, 442111), (57, 349035), (95, 209421), (171, 116345), (285, 69807), (855, 23269)]