18525143

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 24385536

約数和(自身を除く): 5860393

約数列:

[1, 7, 13, 23, 53, 91, 161, 167, 299, 371, 689, 1169, 1219, 2093, 2171, 3841, 4823, 8533, 8851, 15197, 15847, 26887, 49933, 61957, 110929, 115063, 203573, 349531, 805441, 1425011, 2646449, 18525143]

約数ペア:

[(1, 18525143), (7, 2646449), (13, 1425011), (23, 805441), (53, 349531), (91, 203573), (161, 115063), (167, 110929), (299, 61957), (371, 49933), (689, 26887), (1169, 15847), (1219, 15197), (2093, 8851), (2171, 8533), (3841, 4823)]