20854197

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{25463}}^1$

素因数の和:25489

約数の個数: 24

約数和(自身を含む): 37075584

約数和(自身を除く): 16221387

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 25463, 76389, 178241, 229167, 331019, 534723, 993057, 1604169, 2317133, 2979171, 6951399, 20854197]

約数ペア:

[(1, 20854197), (3, 6951399), (7, 2979171), (9, 2317133), (13, 1604169), (21, 993057), (39, 534723), (63, 331019), (91, 229167), (117, 178241), (273, 76389), (819, 25463)]