20700747

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7121}}^1$

素因数の和:7163

約数の個数: 24

約数和(自身を含む): 33330960

約数和(自身を除く): 12630213

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 969, 2907, 7121, 21363, 64089, 121057, 135299, 363171, 405897, 1089513, 1217691, 2300083, 6900249, 20700747]

約数ペア:

[(1, 20700747), (3, 6900249), (9, 2300083), (17, 1217691), (19, 1089513), (51, 405897), (57, 363171), (153, 135299), (171, 121057), (323, 64089), (969, 21363), (2907, 7121)]