20457423

素因数分解:

$3^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1877}}^1$

素因数の和:2063

約数の個数: 24

約数和(自身を含む): 33984288

約数和(自身を除く): 13526865

約数列:

[1, 3, 7, 9, 21, 63, 173, 519, 1211, 1557, 1877, 3633, 5631, 10899, 13139, 16893, 39417, 118251, 324721, 974163, 2273047, 2922489, 6819141, 20457423]

約数ペア:

[(1, 20457423), (3, 6819141), (7, 2922489), (9, 2273047), (21, 974163), (63, 324721), (173, 118251), (519, 39417), (1211, 16893), (1557, 13139), (1877, 10899), (3633, 5631)]