21851613

素因数分解:

$3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2267}}^1$

素因数の和:2303

約数の個数: 40

約数和(自身を含む): 39517632

約数和(自身を除く): 17666019

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 119, 153, 189, 357, 459, 567, 1071, 1377, 2267, 3213, 6801, 9639, 15869, 20403, 38539, 47607, 61209, 115617, 142821, 183627, 269773, 346851, 428463, 809319, 1040553, 1285389, 2427957, 3121659, 7283871, 21851613]

約数ペア:

[(1, 21851613), (3, 7283871), (7, 3121659), (9, 2427957), (17, 1285389), (21, 1040553), (27, 809319), (51, 428463), (63, 346851), (81, 269773), (119, 183627), (153, 142821), (189, 115617), (357, 61209), (459, 47607), (567, 38539), (1071, 20403), (1377, 15869), (2267, 9639), (3213, 6801)]