21000688263

素因数分解:

$3^3\times {\mathrm{79}}^1\times {\mathrm{677}}^1\times {\mathrm{14543}}^1$

素因数の和:15308

約数の個数: 32

約数和(自身を含む): 31554662400

約数和(自身を除く): 10553974137

約数列:

[1, 3, 9, 27, 79, 237, 677, 711, 2031, 2133, 6093, 14543, 18279, 43629, 53483, 130887, 160449, 392661, 481347, 1148897, 1444041, 3446691, 9845611, 10340073, 29536833, 31020219, 88610499, 265831497, 777803269, 2333409807, 7000229421, 21000688263]

約数ペア:

[(1, 21000688263), (3, 7000229421), (9, 2333409807), (27, 777803269), (79, 265831497), (237, 88610499), (677, 31020219), (711, 29536833), (2031, 10340073), (2133, 9845611), (6093, 3446691), (14543, 1444041), (18279, 1148897), (43629, 481347), (53483, 392661), (130887, 160449)]