18992013

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{419}}^1\times {\mathrm{521}}^1$

素因数の和:972

約数の個数: 16

約数和(自身を含む): 26308800

約数和(自身を除く): 7316787

約数列:

[1, 3, 29, 87, 419, 521, 1257, 1563, 12151, 15109, 36453, 45327, 218299, 654897, 6330671, 18992013]

約数ペア:

[(1, 18992013), (3, 6330671), (29, 654897), (87, 218299), (419, 45327), (521, 36453), (1257, 15109), (1563, 12151)]