20817356

素因数分解:

$2^2\times 7^3\times {\mathrm{15173}}^1$

素因数の和:15198

約数の個数: 24

約数和(自身を含む): 42487200

約数和(自身を除く): 21669844

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 15173, 30346, 60692, 106211, 212422, 424844, 743477, 1486954, 2973908, 5204339, 10408678, 20817356]

約数ペア:

[(1, 20817356), (2, 10408678), (4, 5204339), (7, 2973908), (14, 1486954), (28, 743477), (49, 424844), (98, 212422), (196, 106211), (343, 60692), (686, 30346), (1372, 15173)]