19836891

素因数分解:

$3^2\times {\mathrm{67}}^2\times {\mathrm{491}}^1$

素因数の和:631

約数の個数: 18

約数和(自身を含む): 29146572

約数和(自身を除く): 9309681

約数列:

[1, 3, 9, 67, 201, 491, 603, 1473, 4419, 4489, 13467, 32897, 40401, 98691, 296073, 2204099, 6612297, 19836891]

約数ペア:

[(1, 19836891), (3, 6612297), (9, 2204099), (67, 296073), (201, 98691), (491, 40401), (603, 32897), (1473, 13467), (4419, 4489)]