19251981

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4561}}^1$

素因数の和:4641

約数の個数: 24

約数和(自身を含む): 32262464

約数和(自身を除く): 13010483

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 4561, 13683, 31927, 41049, 95781, 287343, 305587, 916761, 2139109, 2750283, 6417327, 19251981]

約数ペア:

[(1, 19251981), (3, 6417327), (7, 2750283), (9, 2139109), (21, 916761), (63, 305587), (67, 287343), (201, 95781), (469, 41049), (603, 31927), (1407, 13683), (4221, 4561)]