638864067

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{22447}}^1$

素因数の和:22682

約数の個数: 16

約数和(自身を含む): 872778240

約数和(自身を除く): 233914173

約数列:

[1, 3, 53, 159, 179, 537, 9487, 22447, 28461, 67341, 1189691, 3569073, 4018013, 12054039, 212954689, 638864067]

約数ペア:

[(1, 638864067), (3, 212954689), (53, 12054039), (159, 4018013), (179, 3569073), (537, 1189691), (9487, 67341), (22447, 28461)]