18319503

素因数分解:

$3^1\times {\mathrm{29}}^2\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:251

約数の個数: 24

約数和(自身を含む): 25962768

約数和(自身を除く): 7643265

約数列:

[1, 3, 29, 53, 87, 137, 159, 411, 841, 1537, 2523, 3973, 4611, 7261, 11919, 21783, 44573, 115217, 133719, 210569, 345651, 631707, 6106501, 18319503]

約数ペア:

[(1, 18319503), (3, 6106501), (29, 631707), (53, 345651), (87, 210569), (137, 133719), (159, 115217), (411, 44573), (841, 21783), (1537, 11919), (2523, 7261), (3973, 4611)]