20210751

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{277}}^1$

素因数の和:372

約数の個数: 36

約数和(自身を含む): 32685016

約数和(自身を除く): 12474265

約数列:

[1, 3, 9, 11, 33, 67, 99, 121, 201, 277, 363, 603, 737, 831, 1089, 2211, 2493, 3047, 6633, 8107, 9141, 18559, 24321, 27423, 33517, 55677, 72963, 100551, 167031, 204149, 301653, 612447, 1837341, 2245639, 6736917, 20210751]

約数ペア:

[(1, 20210751), (3, 6736917), (9, 2245639), (11, 1837341), (33, 612447), (67, 301653), (99, 204149), (121, 167031), (201, 100551), (277, 72963), (363, 55677), (603, 33517), (737, 27423), (831, 24321), (1089, 18559), (2211, 9141), (2493, 8107), (3047, 6633)]