19704609

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{1259}}^1$

素因数の和:1349

約数の個数: 24

約数和(自身を含む): 29877120

約数和(自身を除く): 10172511

約数列:

[1, 3, 9, 37, 47, 111, 141, 333, 423, 1259, 1739, 3777, 5217, 11331, 15651, 46583, 59173, 139749, 177519, 419247, 532557, 2189401, 6568203, 19704609]

約数ペア:

[(1, 19704609), (3, 6568203), (9, 2189401), (37, 532557), (47, 419247), (111, 177519), (141, 139749), (333, 59173), (423, 46583), (1259, 15651), (1739, 11331), (3777, 5217)]