28051821

素因数分解:

$3^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{5003}}^1$

素因数の和:5105

約数の個数: 24

約数和(自身を含む): 46837440

約数和(自身を除く): 18785619

約数列:

[1, 3, 7, 9, 21, 63, 89, 267, 623, 801, 1869, 5003, 5607, 15009, 35021, 45027, 105063, 315189, 445267, 1335801, 3116869, 4007403, 9350607, 28051821]

約数ペア:

[(1, 28051821), (3, 9350607), (7, 4007403), (9, 3116869), (21, 1335801), (63, 445267), (89, 315189), (267, 105063), (623, 45027), (801, 35021), (1869, 15009), (5003, 5607)]