18676719

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{659}}^1$

素因数の和:779

約数の個数: 24

約数和(自身を含む): 28005120

約数和(自身を除く): 9328401

約数列:

[1, 3, 9, 47, 67, 141, 201, 423, 603, 659, 1977, 3149, 5931, 9447, 28341, 30973, 44153, 92919, 132459, 278757, 397377, 2075191, 6225573, 18676719]

約数ペア:

[(1, 18676719), (3, 6225573), (9, 2075191), (47, 397377), (67, 278757), (141, 132459), (201, 92919), (423, 44153), (603, 30973), (659, 28341), (1977, 9447), (3149, 5931)]